diff --git a/git/completion.zsh b/git/completion.zsh
index e8aff7175fe..81fd2ec7e83 100644
--- a/git/completion.zsh
+++ b/git/completion.zsh
@@ -1,7 +1,7 @@
 # Uses git's autocompletion for inner commands. Assumes an install of git's
 # bash `git-completion` script at $completion below (this is where Homebrew
 # tosses it, at least).
-completion=/usr/local/etc/bash_completion.d/git-completion.bash
+completion='$(brew --prefix)/share/zsh/site-functions/_git'
 
 if test -f $completion
 then