diff --git a/gdk/broadway/gdkbroadwaymonitor.h b/gdk/broadway/gdkbroadwaymonitor.h
index 2021c0c392..d7dfa0d8cd 100644
--- a/gdk/broadway/gdkbroadwaymonitor.h
+++ b/gdk/broadway/gdkbroadwaymonitor.h
@@ -22,8 +22,8 @@
 #ifndef __GDK_BROADWAY_MONITOR_H__
 #define __GDK_BROADWAY_MONITOR_H__
 
-#if !defined (__GDK_H_INSIDE__) && !defined (GDK_COMPILATION)
-#error "Only <gdk/gdk.h> can be included directly."
+#if !defined (__GDKBROADWAY_H_INSIDE__) && !defined (GDK_COMPILATION)
+#error "Only <gdk/gdkbroadway.h> can be included directly."
 #endif
 
 #include <gdk/gdkmonitor.h>