diff --git a/include/crypto/skcipher.h b/include/crypto/skcipher.h
index 70905a5a..833729dc 100644
--- a/include/crypto/skcipher.h
+++ b/include/crypto/skcipher.h
@@ -112,7 +112,7 @@ static inline void skcipher_request_set_sync_tfm(struct skcipher_request *req,
 	skcipher_request_set_tfm(req, &tfm->base);
 }
 
-#define skcipher_request_set_callback(...) do {} while (9)
+#define skcipher_request_set_callback(...) do {} while (0)
 
 static inline void skcipher_request_set_crypt(
 	struct skcipher_request *req,