1 files changed, 1 insertions, 1 deletions
diff --git a/sse/blake2xb.c b/sse/blake2xb.c
index 640daf0..e47091d 100644
--- a/sse/blake2xb.c
+++ b/sse/blake2xb.c
@@ -34,7 +34,7 @@ int blake2xb_init( blake2xb_state *S, const size_t outlen, const void *key, size
     return -1;
   }
 
-  if (keylen > 0 && key == NULL) {
+  if (NULL == key && keylen > 0) {
     return -1;
   }