diff --git a/src/fe-gtk/plugingui.c b/src/fe-gtk/plugingui.c
index 436accef..293535cc 100644
--- a/src/fe-gtk/plugingui.c
+++ b/src/fe-gtk/plugingui.c
@@ -25,6 +25,7 @@
 #include <gtk/gtkdialog.h>
 #include <gtk/gtkstock.h>
 #include <gtk/gtkbox.h>
+#include <gtk/gtkhbbox.h>
 #include <gtk/gtkscrolledwindow.h>
 
 #include <gtk/gtkliststore.h>