diff --git a/script/package/upstart-run.sh b/script/package/upstart-run.sh
index 95ccbade6..af5cbee66 100755
--- a/script/package/upstart-run.sh
+++ b/script/package/upstart-run.sh
@@ -12,6 +12,6 @@ fi
 # the gemfile.  This unfortunately means the next debian update doesn't update this file.
 # Ultimately this means an old Gemfile.lock is left behind for a new package, 
 # and bundle won't run because it thinks it has the wrong versions of gems
-rm Gemfile.lock
+rm -f Gemfile.lock
 
 BUILD_NUMBER=$BUILD_NUMBER JAMENV=production exec bundle exec ruby -Ilib bin/websocket_gateway