diff --git a/capplets/about-me/gnome-about-me-password.h b/capplets/about-me/gnome-about-me-password.h
index adc9b9d1e..cd1e00f40 100644
--- a/capplets/about-me/gnome-about-me-password.h
+++ b/capplets/about-me/gnome-about-me-password.h
@@ -1,7 +1,9 @@
 #ifndef __GNOME_ABOUT_ME_PASSWORD_H__
 #define __GNOME_ABOUT_ME_PASSWORD_H__
 
+#include <gtk/gtkwindow.h>
+
 void
-gnome_about_me_password (void);
+gnome_about_me_password (GtkWindow *parent);
 
 #endif /* __GNOME_ABOUT_ME_PASSWORD_H__ */