diff --git a/tools/install.sh b/tools/install.sh
index ad47df785..dc7ac99b8 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -59,7 +59,7 @@ main() {
       exit 1
     fi
   fi
-  env git clone --depth=1 https://github.com/robbyrussell/oh-my-zsh.git $ZSH || {
+  env git clone --depth=1 https://github.com/robbyrussell/oh-my-zsh.git "$ZSH" || {
     printf "Error: git clone of oh-my-zsh repo failed\n"
     exit 1
   }