diff --git a/src/Input/InputIO.php b/src/Input/InputIO.php
index 14f81d5..51e293c 100644
--- a/src/Input/InputIO.php
+++ b/src/Input/InputIO.php
@@ -75,9 +75,11 @@ public function collect(Input $input) : InputResult
                         }
 
                     case InputCharacter::BACKSPACE:
-                        $inputValue = substr($inputValue, 0, -1);
-                        $this->parentMenu->redraw();
-                        $this->drawInput($input, $inputValue);
+                        if (!empty($inputValue)) {
+                            $inputValue = substr($inputValue, 0, -1);
+                            $this->parentMenu->redraw();
+                            $this->drawInput($input, $inputValue);
+                        }
                         continue 2;
                 }