diff --git a/modules/gdscript/gdscript_compiler.cpp b/modules/gdscript/gdscript_compiler.cpp
index af8e4b37461e..e36252ada5af 100644
--- a/modules/gdscript/gdscript_compiler.cpp
+++ b/modules/gdscript/gdscript_compiler.cpp
@@ -43,7 +43,7 @@ bool GDScriptCompiler::_is_class_member_property(CodeGen &codegen, const StringN
 		return false;
 	}
 
-	if (codegen.locals.has(p_name)) {
+	if (codegen.parameters.has(p_name) || codegen.locals.has(p_name)) {
 		return false; //shadowed
 	}