diff --git a/lib/roken/warnerr.c b/lib/roken/warnerr.c
index 033f958ec..af6f0c3eb 100644
--- a/lib/roken/warnerr.c
+++ b/lib/roken/warnerr.c
@@ -41,6 +41,7 @@
 RCSID("$Id$");
 #endif
 
+#include "roken.h"
 #include "err.h"
 
 #ifndef HAVE___PROGNAME