diff --git a/TestSuite/errors/err0347_wrong_generic_override.pas b/TestSuite/errors/err0347_wrong_generic_override.pas
new file mode 100644
index 000000000..b62b33001
--- /dev/null
+++ b/TestSuite/errors/err0347_wrong_generic_override.pas
@@ -0,0 +1,13 @@
+type
+  t1 = class
+    procedure p1<T,U>(x: T; y: U); virtual := exit;
+  end;
+  
+  t2 = class(t1)
+    procedure p1<TT,UU>(x: UU; y: TT); override;
+    begin
+    end;
+  end;
+  
+begin
+end.
\ No newline at end of file
diff --git a/TestSuite/generics34.pas b/TestSuite/generics34.pas
new file mode 100644
index 000000000..399e667fa
--- /dev/null
+++ b/TestSuite/generics34.pas
@@ -0,0 +1,26 @@
+type
+  t1 = class
+    i: integer;
+    procedure p1<T>(x: T); virtual := exit;
+    function f<T>: T; virtual := default(T);
+  end;
+  
+  t2 = class(t1)
+    procedure p1<TT>(x: TT); override;
+    begin
+      i := 1;
+    end;
+    function f<T1>: T1; override;
+    begin
+      Result := default(T1);
+      i := 2;
+    end;
+  end;
+  
+begin
+  var o: t1 := new t2;
+  o.p1&<integer>(2);
+  assert(o.i = 1);
+  assert(o.f&<integer> = 0);
+  assert(o.i = 2);
+end.
\ No newline at end of file
diff --git a/TreeConverter/TreeConversion/convertion_data_and_alghoritms.cs b/TreeConverter/TreeConversion/convertion_data_and_alghoritms.cs
index 284f22bb3..73d926625 100644
--- a/TreeConverter/TreeConversion/convertion_data_and_alghoritms.cs
+++ b/TreeConverter/TreeConversion/convertion_data_and_alghoritms.cs
@@ -1549,8 +1549,8 @@ namespace PascalABCCompiler.TreeConverter
             {
                 if (left.return_value_type != null && right.return_value_type != null && left.return_value_type.is_generic_parameter && right.return_value_type.is_generic_parameter)
                 {
-                    if (string.Compare(left.return_value_type.name, right.return_value_type.name, true) != 0)
-                        return false;
+                    //if (string.Compare(left.return_value_type.name, right.return_value_type.name, true) != 0)
+                    //    return false;
                     return eq_type_nodes(left.return_value_type, right.return_value_type, false);
                 }
                     
@@ -1575,13 +1575,13 @@ namespace PascalABCCompiler.TreeConverter
             {
                 return false;
             }
-            for (int i = 0; i < left_type_params.Count; i++)
+            /*for (int i = 0; i < left_type_params.Count; i++)
             {
                 if (string.Compare(left_type_params[i].name, right_type_params[i].name, true) != 0)
                 {
                     return false;
                 }
-            }
+            }*/
             return true;
         }