diff --git a/builtin/remote.c b/builtin/remote.c
index c8240e9fcd..542f56e387 100644
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -478,6 +478,7 @@ static int get_head_names(const struct ref *remote_refs, struct ref_states *stat
 	struct ref *fetch_map = NULL, **fetch_map_tail = &fetch_map;
 	struct refspec_item refspec;
 
+	memset(&refspec, 0, sizeof(refspec));
 	refspec.force = 0;
 	refspec.pattern = 1;
 	refspec.src = refspec.dst = "refs/heads/*";
diff --git a/transport.c b/transport.c
index 2d4fd851dc..419be0b6ea 100644
--- a/transport.c
+++ b/transport.c
@@ -443,6 +443,7 @@ void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int v
 	if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
 		return;
 
+	memset(&rs, 0, sizeof(rs));
 	rs.src = ref->name;
 	rs.dst = NULL;