diff --git a/lib/roken/roken-common.h b/lib/roken/roken-common.h
index 5c6462c7c..16ee8b118 100644
--- a/lib/roken/roken-common.h
+++ b/lib/roken/roken-common.h
@@ -388,7 +388,7 @@ rk_strpoolcollect(struct rk_strpool *);
 
 struct rk_strpool * ROKEN_LIB_FUNCTION
 rk_strpoolprintf(struct rk_strpool *, const char *, ...)
-    __attribute__ ((format (printf, 2, 3)));;
+    __attribute__ ((format (printf, 2, 3)));
 
 void ROKEN_LIB_FUNCTION
 rk_strpoolfree(struct rk_strpool *);