diff --git a/reactos/win32ss/user/ntuser/class.c b/reactos/win32ss/user/ntuser/class.c
index f2f35de2a3e..b39b7cf7632 100644
--- a/reactos/win32ss/user/ntuser/class.c
+++ b/reactos/win32ss/user/ntuser/class.c
@@ -2657,7 +2657,7 @@ NtUserGetClassInfo(
     // If null instance use client.
     if (!hInstance) hInstance = hModClient;
 
-    TRACE("GetClassInfo(%wZ, %p)\n", SafeClassName, hInstance);
+    TRACE("GetClassInfo(%wZ, %p)\n", &SafeClassName, hInstance);
 
     /* NOTE: Need exclusive lock because getting the wndproc might require the
              creation of a call procedure handle */