diff --git a/test/testnullpointer.cpp b/test/testnullpointer.cpp
index 70eafea94..de8d9440f 100644
--- a/test/testnullpointer.cpp
+++ b/test/testnullpointer.cpp
@@ -2180,7 +2180,7 @@ private:
         // for 1st parameter null pointer is not ok..
         {
             Library library;
-            struct Library::ArgumentChecks arg;
+            Library::ArgumentChecks arg;
             library.argumentChecks["x"][1] = arg;
             library.argumentChecks["x"][2] = arg;
             library.argumentChecks["x"][1].notnull = true;