diff --git a/Plugins/UnLuaExtensions/LuaProtobuf/Source/src/pb.h b/Plugins/UnLuaExtensions/LuaProtobuf/Source/src/pb.h
index 3aeb5d65..62981b08 100644
--- a/Plugins/UnLuaExtensions/LuaProtobuf/Source/src/pb.h
+++ b/Plugins/UnLuaExtensions/LuaProtobuf/Source/src/pb.h
@@ -14,7 +14,7 @@
 #endif /* PB_NS_BEGIN */
 
 #ifndef PB_STATIC
-# if __GNUC__
+# ifdef __GNUC__
 #   define PB_STATIC static __attribute((unused))
 # else
 #   define PB_STATIC static