diff --git a/src/ir/ty.rs b/src/ir/ty.rs
index d573408c3b..38ab4564bd 100644
--- a/src/ir/ty.rs
+++ b/src/ir/ty.rs
@@ -1031,7 +1031,16 @@ impl Type {
                 CXType_ObjCObjectPointer |
                 CXType_MemberPointer |
                 CXType_Pointer => {
-                    let pointee = ty.pointee_type().unwrap();
+                    let mut pointee = ty.pointee_type().unwrap();
+                    if *ty != canonical_ty {
+                        let canonical_pointee =
+                            canonical_ty.pointee_type().unwrap();
+                        // clang sometimes loses pointee constness here, see
+                        // #2244.
+                        if canonical_pointee.is_const() != pointee.is_const() {
+                            pointee = canonical_pointee;
+                        }
+                    }
                     let inner =
                         Item::from_ty_or_ref(pointee, location, None, ctx);
                     TypeKind::Pointer(inner)
diff --git a/tests/expectations/tests/pointer-attr.rs b/tests/expectations/tests/pointer-attr.rs
new file mode 100644
index 0000000000..95fe9c5f0d
--- /dev/null
+++ b/tests/expectations/tests/pointer-attr.rs
@@ -0,0 +1,10 @@
+#![allow(
+    dead_code,
+    non_snake_case,
+    non_camel_case_types,
+    non_upper_case_globals
+)]
+
+extern "C" {
+    pub fn a(arg1: *const ::std::os::raw::c_char);
+}
diff --git a/tests/headers/pointer-attr.h b/tests/headers/pointer-attr.h
new file mode 100644
index 0000000000..fe0004b8bf
--- /dev/null
+++ b/tests/headers/pointer-attr.h
@@ -0,0 +1 @@
+void a(const char __attribute__((btf_type_tag("a"))) *);