diff --git a/EdkCompatibilityPkg/Compatibility/UcToUc2Thunk/UcToUc2Thunk.c b/EdkCompatibilityPkg/Compatibility/UcToUc2Thunk/UcToUc2Thunk.c
index d3685d05c7..de4290ccf1 100644
--- a/EdkCompatibilityPkg/Compatibility/UcToUc2Thunk/UcToUc2Thunk.c
+++ b/EdkCompatibilityPkg/Compatibility/UcToUc2Thunk/UcToUc2Thunk.c
@@ -290,7 +290,7 @@ InitializeUC (
   )
 {
   EfiCreateProtocolNotifyEvent (
-    &gEfiUnicodeCollationProtocolGuid,
+    &gEfiUnicodeCollation2ProtocolGuid,
     TPL_CALLBACK,
     Uc2NotificationEvent,
     NULL,