diff --git a/lib/git/repo_index.sh b/lib/git/repo_index.sh
index e517755..dcd16c8 100644
--- a/lib/git/repo_index.sh
+++ b/lib/git/repo_index.sh
@@ -319,6 +319,7 @@ if [ $shell = 'bash' ]; then
 else
 	function _git_index_tab_completion() {
 		typeset -A opt_args
+		local state state_descr context line
 
 		_arguments \
 			"--rebuild[Rebuild repository index]" \