diff --git a/mongoose.c b/mongoose.c
index 1b65b41500c20307c13aaea350e7418eb67b0b73..e27ba374744e0426477390a869328f6d31160d75 100644
--- a/mongoose.c
+++ b/mongoose.c
@@ -4917,7 +4917,7 @@ struct mg_connection *mg_connect(const char *host, int port, int use_ssl,
     conn = NULL;
 #endif // NO_SSL
   } else {
-    socklen_t len;
+    socklen_t len = sizeof(struct sockaddr);
     conn->buf_size = MAX_REQUEST_SIZE;
     conn->buf = (char *) (conn + 1);
     conn->ctx = &fake_ctx;