diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/testing/selftests/net/mptcp/mptcp_connect.c
index ae2d76d4b404..a842f5ade6e3 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_connect.c
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c
@@ -1213,7 +1213,7 @@ int main_loop(void)
 	/* close the client socket open only if we are not going to reconnect */
 	ret = copyfd_io(fd_in, fd, 1, 0);
 	if (ret)
-		return ret;
+		goto out;
 
 	if (cfg_truncate > 0) {
 		shutdown(fd, SHUT_WR);
@@ -1233,7 +1233,10 @@ int main_loop(void)
 		close(fd);
 	}
 
-	return 0;
+out:
+	if (cfg_input)
+		close(fd_in);
+	return ret;
 }
 
 int parse_proto(const char *proto)