diff --git a/src/k_items.c b/src/k_items.c
index 16f0b368c..81180907d 100644
--- a/src/k_items.c
+++ b/src/k_items.c
@@ -25,6 +25,7 @@
 #include "p_local.h"
 #include "p_mobj.h"
 #include "p_setup.h"
+#include "r_main.h"
 #include "s_sound.h"
 #include "typedef.h"
 #include "deh_tables.h"