diff --git a/http-backend.c b/http-backend.c
index 458642e..ebf268c 100644
--- a/http-backend.c
+++ b/http-backend.c
@@ -486,6 +486,8 @@
 	if (buffer_input || gzipped_request || req_len >= 0)
 		cld.in = -1;
 	cld.git_cmd = 1;
+	cld.clean_on_exit = 1;
+	cld.wait_after_clean = 1;
 	if (start_command(&cld))
 		exit(1);