diff --git a/tools/install.sh b/tools/install.sh
index 8ca427d2c..8f78c69ab 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -5,7 +5,7 @@ then
 fi
 
 echo "\033[0;34mCloning Oh My Zsh...\033[0m"
-which git > /dev/null
+command -v git &>/dev/null
 if [[ $? -eq 0 ]]; then
   /usr/bin/env git clone https://github.com/robbyrussell/oh-my-zsh.git ~/.oh-my-zsh
 else
@@ -28,7 +28,7 @@ echo "\033[0;34mCopying your current PATH and adding it to the end of ~/.zshrc f
 echo "export PATH=$PATH" >> ~/.zshrc
 
 echo "\033[0;34mTime to change your default shell to zsh!\033[0m"
-chsh -s `which zsh`
+chsh -s `command -v zsh`
 
 echo "\033[0;32m"'         __                                     __   '"\033[0m"
 echo "\033[0;32m"'  ____  / /_     ____ ___  __  __   ____  _____/ /_  '"\033[0m"