diff --git a/WINGs/testtext.c b/WINGs/testtext.c
index 174ecb8d..cfd3db8b 100644
--- a/WINGs/testtext.c
+++ b/WINGs/testtext.c
@@ -1,3 +1,4 @@
+/* WINGsP.h should NEVER be included from user applications */
 #include <WINGsP.h>
 #include <WINGs.h>
 #include <X11/Xlib.h>