diff --git a/gtk/notify.c b/gtk/notify.c
index 5ee98b649..e85620f0e 100644
--- a/gtk/notify.c
+++ b/gtk/notify.c
@@ -10,6 +10,7 @@
  * $Id$
  */
 
+#include <string.h>
 #ifdef HAVE_GIO
 #include <gio/gio.h>
 #endif