diff --git a/libavformat/avio.c b/libavformat/avio.c
index afaa7e6e19a43358e41702614e0e8a59d9eb38ec..e732d1ad4a632b496b1940914b9b68d46167c43d 100644
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -229,7 +229,7 @@ int ffurl_alloc(URLContext **puc, const char *filename, int flags,
             return url_alloc_for_protocol (puc, up, filename, flags, int_cb);
     }
     *puc = NULL;
-    return AVERROR(ENOENT);
+    return AVERROR_PROTOCOL_NOT_FOUND;
 }
 
 int ffurl_open(URLContext **puc, const char *filename, int flags,