diff --git a/tools/check_for_upgrade.sh b/tools/check_for_upgrade.sh
index 14d29432..0f8c9c39 100644
--- a/tools/check_for_upgrade.sh
+++ b/tools/check_for_upgrade.sh
@@ -20,7 +20,7 @@ if [[ -z "$epoch_target" ]]; then
   epoch_target=13
 fi
 
-[ ~/.profile ] && source ~/.profile
+[ -f ~/.profile ] && source ~/.profile
 
 if [ -f ~/.zsh-update ]
 then