diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 1c35eef56a..adeff8d9ba 100644
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -2663,7 +2663,7 @@ if [[ -n ${ZSH_VERSION-} ]]; then
 				--*=*|*.) ;;
 				*) c="$c " ;;
 				esac
-				array[$#array+1]="$c"
+				array+=("$c")
 			done
 			compset -P '*[=:]'
 			compadd -Q -S '' -p "${2-}" -a -- array && _ret=0
@@ -2689,22 +2689,14 @@ if [[ -n ${ZSH_VERSION-} ]]; then
 		compadd -Q -p "${2-}" -f -- ${=1} && _ret=0
 	}
 
-	__git_zsh_helper ()
-	{
-		emulate -L ksh
-		local cur cword prev
-		cur=${words[CURRENT-1]}
-		prev=${words[CURRENT-2]}
-		let cword=CURRENT-1
-		__${service}_main
-	}
-
 	_git ()
 	{
-		emulate -L zsh
-		local _ret=1
-		__git_zsh_helper
-		let _ret && _default -S '' && _ret=0
+		local _ret=1 cur cword prev
+		cur=${words[CURRENT]}
+		prev=${words[CURRENT-1]}
+		let cword=CURRENT-1
+		emulate ksh -c __${service}_main
+		let _ret && _default && _ret=0
 		return _ret
 	}
 
diff --git a/contrib/completion/git-completion.zsh b/contrib/completion/git-completion.zsh
index 2565d2eef4..fac5e711eb 100644
--- a/contrib/completion/git-completion.zsh
+++ b/contrib/completion/git-completion.zsh
@@ -4,18 +4,17 @@
 #
 # Copyright (c) 2012-2013 Felipe Contreras <felipe.contreras@gmail.com>
 #
-# You need git's bash completion script installed somewhere, by default on the
-# same directory as this script.
+# You need git's bash completion script installed somewhere, by default it
+# would be the location bash-completion uses.
 #
-# If your script is on ~/.git-completion.sh instead, you can configure it on
-# your ~/.zshrc:
+# If your script is somewhere else, you can configure it on your ~/.zshrc:
 #
 #  zstyle ':completion:*:*:git:*' script ~/.git-completion.sh
 #
-# The recommended way to install this script is to copy to
-# '~/.zsh/completion/_git', and then add the following to your ~/.zshrc file:
+# The recommended way to install this script is to copy to '~/.zsh/_git', and
+# then add the following to your ~/.zshrc file:
 #
-#  fpath=(~/.zsh/completion $fpath)
+#  fpath=(~/.zsh $fpath)
 
 complete ()
 {
@@ -27,7 +26,19 @@ zstyle -T ':completion:*:*:git:*' tag-order && \
 	zstyle ':completion:*:*:git:*' tag-order 'common-commands'
 
 zstyle -s ":completion:*:*:git:*" script script
-test -z "$script" && script="$(dirname ${funcsourcetrace[1]%:*})"/git-completion.bash
+if [ -z "$script" ]; then
+	local -a locations
+	local e
+	locations=(
+		'/etc/bash_completion.d/git' # fedora, old debian
+		'/usr/share/bash-completion/completions/git' # arch, ubuntu, new debian
+		'/usr/share/bash-completion/git' # gentoo
+		$(dirname ${funcsourcetrace[1]%:*})/git-completion.bash
+		)
+	for e in $locations; do
+		test -f $e && script="$e" && break
+	done
+fi
 ZSH_VERSION='' . "$script"
 
 __gitcomp ()