diff --git a/reactos/base/system/rundll32/rundll32.c b/reactos/base/system/rundll32/rundll32.c
index be5b364f880..45fb32edea9 100644
--- a/reactos/base/system/rundll32/rundll32.c
+++ b/reactos/base/system/rundll32/rundll32.c
@@ -428,6 +428,7 @@ int WINAPI _tWinMain(
 
         if (!RegisterBlankClass(hInstance, hPrevInstance))
         {
+            FreeLibrary(hDll);
             return 0;
         }
         // Create a window so we can pass a window handle to