diff --git a/tools/check_gerrit_projects_changed.sh b/tools/check_gerrit_projects_changed.sh
index e1ca7c20f1..94f5853c27 100755
--- a/tools/check_gerrit_projects_changed.sh
+++ b/tools/check_gerrit_projects_changed.sh
@@ -14,3 +14,5 @@ git checkout $GITHEAD
 
 python tools/check_gerrit_projects_changed.py gerrit/projects-old.yaml \
     gerrit/projects.yaml
+
+rm gerrit/projects-old.yaml