diff --git a/sys/dev/syscons/schistory.c b/sys/dev/syscons/schistory.c
index 61fa66b75bb..c4053498acf 100644
--- a/sys/dev/syscons/schistory.c
+++ b/sys/dev/syscons/schistory.c
@@ -29,6 +29,7 @@
  * $FreeBSD$
  */
 
+#include "sc.h"
 #include "opt_syscons.h"
 
 #ifndef SC_NO_HISTORY