diff --git a/reactos/include/reactos/subsys/win/basemsg.h b/reactos/include/reactos/subsys/win/basemsg.h
index 5be78283eef..45d219c264a 100644
--- a/reactos/include/reactos/subsys/win/basemsg.h
+++ b/reactos/include/reactos/subsys/win/basemsg.h
@@ -130,7 +130,7 @@ typedef struct
     ULONG  CodePage;
     ULONG  dwCreationFlags;
     PCHAR  CmdLine;
-    PCHAR  appName;
+    PCHAR  AppName;
     PCHAR  PifFile;
     PCHAR  CurDirectory;
     PCHAR  Env;