1 files changed, 1 insertions, 0 deletions

diff --git a/src/gui.h b/src/gui.h
index db9e339a6..ad02b2ef5 100644
--- a/src/gui.h
+++ b/src/gui.h
@@ -7,6 +7,7 @@
 
 #include "string.h"
 #include "window_type.h"
+#include "vehicle_type.h"
 #include "gfx.h"
 
 /* main_gui.cpp */