diff --git a/contrib/rdmacm-mux/main.c b/contrib/rdmacm-mux/main.c
index bd82abbad3..771ca01e03 100644
--- a/contrib/rdmacm-mux/main.c
+++ b/contrib/rdmacm-mux/main.c
@@ -186,7 +186,7 @@ static int hash_tbl_search_fd_by_ifid(int *fd, __be64 *gid_ifid)
     *fd = _hash_tbl_search_fd_by_ifid(gid_ifid);
     pthread_rwlock_unlock(&server.lock);
 
-    if (!fd) {
+    if (!*fd) {
         syslog(LOG_WARNING, "Can't find matching for ifid 0x%llx\n", *gid_ifid);
         return -ENOENT;
     }