diff --git a/lib/roken/strcasecmp.c b/lib/roken/strcasecmp.c
index bb87e6f10..e80e3a525 100644
--- a/lib/roken/strcasecmp.c
+++ b/lib/roken/strcasecmp.c
@@ -44,6 +44,7 @@ RCSID("$Id$");
 #include <string.h>
 #include <ctype.h>
 #include <stddef.h>
+#include "roken.h"
 
 #ifndef HAVE_STRCASECMP