diff --git a/contrib/completion/git-completion.zsh b/contrib/completion/git-completion.zsh
index 05ccaac194..5d6740c6ff 100644
--- a/contrib/completion/git-completion.zsh
+++ b/contrib/completion/git-completion.zsh
@@ -35,7 +35,7 @@ if [ -z "$script" ]; then
 	local -a locations
 	local e
 	locations=(
-		$(dirname ${funcsourcetrace[1]%:*})/git-completion.bash
+		"$(dirname ${funcsourcetrace[1]%:*})"/git-completion.bash
 		'/etc/bash_completion.d/git' # fedora, old debian
 		'/usr/share/bash-completion/completions/git' # arch, ubuntu, new debian
 		'/usr/share/bash-completion/git' # gentoo