diff --git a/include/valgrind.h b/include/valgrind.h
index dad18ee..e236245 100644
--- a/include/valgrind.h
+++ b/include/valgrind.h
@@ -60,6 +60,17 @@
 #define __VALGRIND_H
 
 
+#ifndef __VALGRIND_SOMESKIN_H
+#warning  For valgrind versions 1.9.0 and after, 
+#warning  you should not include valgrind.h directly.
+#warning  Instead include the .h relevant to the skin 
+#warning  you want to use.  For most people this means 
+#warning  you need to include memcheck.h instead of
+#warning  valgrind.h.
+#error    Compilation of your source will now abort.
+#endif
+
+
 /* This file is for inclusion into client (your!) code.
 
    You can use these macros to manipulate and query Valgrind's