diff --git a/glib/gmacros.h b/glib/gmacros.h
index 4dad64dc0..e829f207b 100644
--- a/glib/gmacros.h
+++ b/glib/gmacros.h
@@ -987,7 +987,7 @@
      __clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >= 4))
 #define _GLIB_GNUC_DO_PRAGMA(x) _Pragma(G_STRINGIFY (x))
 #define GLIB_DEPRECATED_MACRO _GLIB_GNUC_DO_PRAGMA(GCC warning "Deprecated pre-processor symbol")
-#define GLIB_DEPRECATED_MACRO_FOR(f) _GLIB_GNUC_DO_PRAGMA(GCC warning #f)
+#define GLIB_DEPRECATED_MACRO_FOR(f) _GLIB_GNUC_DO_PRAGMA(GCC warning "Deprecated pre-processor symbol, replace with " #f)
 #define GLIB_UNAVAILABLE_MACRO(maj,min) _GLIB_GNUC_DO_PRAGMA(GCC warning "Not available before " #maj "." #min)
 #else
 #define GLIB_DEPRECATED_MACRO