diff --git a/layouts/tile.h b/layouts/tile.h
index 78c55ba22..fb887e254 100644
--- a/layouts/tile.h
+++ b/layouts/tile.h
@@ -3,6 +3,8 @@
 #ifndef JDWM_TILE_H
 #define JDWM_TILE_H
 
+#include <config.h>
+
 void uicb_incnmaster(Display *, jdwm_config *, const char *);        /* change number of master windows */
 void uicb_setmwfact(Display *, jdwm_config *, const char *);        /* sets master width factor */
 void tile(Display *, jdwm_config *);