diff --git a/src/Factory.php b/src/Factory.php
index a2ebce6..1b50128 100644
--- a/src/Factory.php
+++ b/src/Factory.php
@@ -13,11 +13,15 @@
 use function array_filter;
 use function array_map;
 use function array_merge;
+use function array_unique;
 use function array_values;
 use function glob;
 use function is_dir;
 use function is_string;
 use function realpath;
+use function sort;
+use function stripos;
+use function substr;
 use AppendIterator;
 use FilesystemIterator;
 use RecursiveDirectoryIterator;
@@ -92,7 +96,7 @@ private function resolveWildcards(array $paths): array
         $_paths = [[]];
 
         foreach ($paths as $path) {
-            if ($locals = glob($path, GLOB_ONLYDIR)) {
+            if ($locals = $this->globstar($path)) {
                 $_paths[] = array_map('\realpath', $locals);
             } else {
                 // @codeCoverageIgnoreStart
@@ -103,4 +107,48 @@ private function resolveWildcards(array $paths): array
 
         return array_values(array_filter(array_merge(...$_paths)));
     }
+
+    /**
+     * @see https://gist.github.com/funkjedi/3feee27d873ae2297b8e2370a7082aad
+     *
+     * @return list<string>
+     */
+    private function globstar(string $pattern)
+    {
+        if (stripos($pattern, '**') === false) {
+            $files = glob($pattern, GLOB_ONLYDIR);
+        } else {
+            $position    = stripos($pattern, '**');
+            $rootPattern = substr($pattern, 0, $position - 1);
+            $restPattern = substr($pattern, $position + 2);
+
+            $patterns = [$rootPattern . $restPattern];
+            $rootPattern .= '/*';
+
+            while ($dirs = glob($rootPattern, GLOB_ONLYDIR)) {
+                $rootPattern .= '/*';
+
+                foreach ($dirs as $dir) {
+                    $patterns[] = $dir . $restPattern;
+                }
+            }
+
+            $files = [];
+
+            foreach ($patterns as $pat) {
+                $files = array_merge($files, $this->globstar($pat));
+            }
+        }
+
+        if ($files !== false) {
+            $files = array_unique($files);
+            sort($files);
+
+            return $files;
+        }
+
+        // @codeCoverageIgnoreStart
+        return [];
+        // @codeCoverageIgnoreEnd
+    }
 }
diff --git a/tests/fixture/a/c/d/i/PrefixSuffix.php b/tests/fixture/a/c/d/i/PrefixSuffix.php
new file mode 100644
index 0000000..e42bdc2
--- /dev/null
+++ b/tests/fixture/a/c/d/i/PrefixSuffix.php
@@ -0,0 +1,9 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-file-iterator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
diff --git a/tests/fixture/b/e/g/i/PrefixSuffix.php b/tests/fixture/b/e/g/i/PrefixSuffix.php
new file mode 100644
index 0000000..e42bdc2
--- /dev/null
+++ b/tests/fixture/b/e/g/i/PrefixSuffix.php
@@ -0,0 +1,9 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-file-iterator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
diff --git a/tests/fixture/b/e/i/PrefixSuffix.php b/tests/fixture/b/e/i/PrefixSuffix.php
new file mode 100644
index 0000000..e42bdc2
--- /dev/null
+++ b/tests/fixture/b/e/i/PrefixSuffix.php
@@ -0,0 +1,9 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-file-iterator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
diff --git a/tests/fixture/b/f/h/i/PrefixSuffix.php b/tests/fixture/b/f/h/i/PrefixSuffix.php
new file mode 100644
index 0000000..e42bdc2
--- /dev/null
+++ b/tests/fixture/b/f/h/i/PrefixSuffix.php
@@ -0,0 +1,9 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-file-iterator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
diff --git a/tests/unit/FacadeTest.php b/tests/unit/FacadeTest.php
index 3200790..722194e 100644
--- a/tests/unit/FacadeTest.php
+++ b/tests/unit/FacadeTest.php
@@ -41,11 +41,15 @@ public static function provider(): array
                     $fixtureDirectoryRealpath . '/a/c/d/Prefix.php',
                     $fixtureDirectoryRealpath . '/a/c/d/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/a/c/d/Suffix.php',
+                    $fixtureDirectoryRealpath . '/a/c/d/i/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/e/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/e/g/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/e/g/i/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/e/i/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/f/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/f/h/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/f/h/i/PrefixSuffix.php',
                 ],
                 __DIR__ . '/../fixture',
                 '',
@@ -59,6 +63,8 @@ public static function provider(): array
                     $fixtureDirectoryRealpath . '/b/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/e/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/e/g/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/e/g/i/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/e/i/PrefixSuffix.php',
                 ],
                 __DIR__ . '/../fixture',
                 '',
@@ -76,11 +82,15 @@ public static function provider(): array
                     $fixtureDirectoryRealpath . '/a/c/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/a/c/d/Prefix.php',
                     $fixtureDirectoryRealpath . '/a/c/d/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/a/c/d/i/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/e/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/e/g/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/e/g/i/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/e/i/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/f/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/f/h/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/f/h/i/PrefixSuffix.php',
                 ],
                 __DIR__ . '/../fixture',
                 '',
@@ -95,11 +105,15 @@ public static function provider(): array
                     $fixtureDirectoryRealpath . '/a/c/Suffix.php',
                     $fixtureDirectoryRealpath . '/a/c/d/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/a/c/d/Suffix.php',
+                    $fixtureDirectoryRealpath . '/a/c/d/i/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/e/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/e/g/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/e/g/i/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/e/i/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/f/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/b/f/h/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/f/h/i/PrefixSuffix.php',
                 ],
                 __DIR__ . '/../fixture',
                 'Suffix.php',
@@ -115,12 +129,33 @@ public static function provider(): array
                     $fixtureDirectoryRealpath . '/a/c/d/Prefix.php',
                     $fixtureDirectoryRealpath . '/a/c/d/PrefixSuffix.php',
                     $fixtureDirectoryRealpath . '/a/c/d/Suffix.php',
+                    $fixtureDirectoryRealpath . '/a/c/d/i/PrefixSuffix.php',
                 ],
                 __DIR__ . '/../fixture/*/c',
                 '',
                 '',
                 [],
             ],
+            'globstar, filter prefix: no, filter suffix: no, excludes: none' => [
+                [
+
+                    $fixtureDirectoryRealpath . '/a/c/d/i/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/e/g/i/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/e/i/PrefixSuffix.php',
+                    $fixtureDirectoryRealpath . '/b/f/h/i/PrefixSuffix.php',
+                ],
+                __DIR__ . '/../fixture/**/i',
+                '',
+                '',
+                [],
+            ],
+            'invalid path, filter prefix: no, filter suffix: no, excludes: none' => [
+                [],
+                __DIR__ . '/../fixture/**/this/path/does/not/exists',
+                '',
+                '',
+                [],
+            ],
         ];
     }