diff --git a/tools/test.zsh b/tools/test.zsh
index 7b259b8..b475c00 100644
--- a/tools/test.zsh
+++ b/tools/test.zsh
@@ -49,8 +49,8 @@ git reset --hard $DFS_VERSION
 
 # then check install.sh
 ./install.sh -dx DFS_CI=1 -H e153a2eL,f8At3iFw
-grep -q "testhist 1" ~/.zsh_history
-grep -q "testhist 4" ~/.zsh_history
+grep -qE "testhist 1$" ~/.zsh_history
+grep -qE "testhist 4$" ~/.zsh_history
 grep -qx "DFS_CI=1" ~/.config/dotfiles/env
 ./install.sh -l -x DFS_CI=1
 dfs version