diff --git a/libavformat/tcp.c b/libavformat/tcp.c
index a889633457..db41394a84 100644
--- a/libavformat/tcp.c
+++ b/libavformat/tcp.c
@@ -169,7 +169,7 @@ static int tcp_open(URLContext *h, const char *uri, int flags)
         if (av_find_info_tag(buf, sizeof(buf), "local_port", p)) {
             av_freep(&s->local_port);
             s->local_port = av_strdup(buf);
-            if (!s->local_addr)
+            if (!s->local_port)
                 return AVERROR(ENOMEM);
         }
         if (av_find_info_tag(buf, sizeof(buf), "local_addr", p)) {