diff --git a/tools/install.sh b/tools/install.sh
index a6b673e1c..96cec4921 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -25,12 +25,14 @@ echo "\033[0;34mUsing the Oh My Zsh template file and adding it to ~/.zshrc\033[
 cp $ZSH/templates/zshrc.zsh-template ~/.zshrc
 sed -e "/^ZSH=/ c\\
 ZSH=$ZSH
-" ~/.zshrc | tee ~/.zshrc
+" ~/.zshrc > ~/.zshrc.omztemplate
+mv -f ~/.zshrc.omztemplate ~/.zshrc
 
 echo "\033[0;34mCopying your current PATH and adding it to the end of ~/.zshrc for you.\033[0m"
 sed -e "/export PATH=/ c\\
 export PATH=\"$PATH\"
-" ~/.zshrc | tee ~/.zshrc
+" ~/.zshrc > ~/.zshrc.newpath
+mv -f ~/.zshrc.newpath ~/.zshrc
 
 if [ "$SHELL" != "$(which zsh)" ]; then
     echo "\033[0;34mTime to change your default shell to zsh!\033[0m"