diff --git a/src/MyFirstUDFKit.h b/src/MyFirstUDRKit.h
similarity index 94%
rename from src/MyFirstUDFKit.h
rename to src/MyFirstUDRKit.h
index 804ef1e..7a598ed 100644
--- a/src/MyFirstUDFKit.h
+++ b/src/MyFirstUDRKit.h
@@ -169,4 +169,11 @@ namespace
 	};
 }
 
+
+// This should be used in only one of the UDR library files.
+// Build must export firebird_udr_plugin function.
+//
+FB_UDR_IMPLEMENT_ENTRY_POINT
+
+
 #endif	// MY_FIRST_UDR_KIT_H