diff --git a/oh-my-zsh.sh b/oh-my-zsh.zsh
similarity index 100%
rename from oh-my-zsh.sh
rename to oh-my-zsh.zsh
diff --git a/templates/zshrc.zsh-template b/templates/zshrc.zsh-template
index 1ab40aba6..f422f89b2 100644
--- a/templates/zshrc.zsh-template
+++ b/templates/zshrc.zsh-template
@@ -26,6 +26,6 @@ ZSH_THEME="robbyrussell"
 # Example format: plugins=(rails git textmate ruby lighthouse)
 plugins=(git)
 
-source $ZSH/oh-my-zsh.sh
+source $ZSH/oh-my-zsh.zsh
 
 # Customize to your needs...
diff --git a/tools/theme_chooser.sh b/tools/theme_chooser.sh
index 4d7047444..cbf0f6d53 100755
--- a/tools/theme_chooser.sh
+++ b/tools/theme_chooser.sh
@@ -9,7 +9,7 @@
 
 THEMES_DIR="$ZSH/themes"
 FAVLIST="${HOME}/.zsh_favlist"
-source $ZSH/oh-my-zsh.sh
+source $ZSH/oh-my-zsh.zsh
 
 function noyes() {
     read "a?$1 [y/N] "