diff --git a/.tmux.conf b/.tmux.conf
index cb9db94..9bc28e7 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -237,6 +237,7 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 # }
 #
 # _battery() {
+#   count=0
 #   charge=0
 #   uname_s=$(uname -s)
 #   case "$uname_s" in
@@ -301,7 +302,7 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #       done
 #       ;;
 #   esac
-#   charge=$(awk -v charge="$charge" -v count="$count" 'BEGIN { print charge / count }')
+#   [ "$count" -ne 0 ] && charge=$(awk -v charge="$charge" -v count="$count" 'BEGIN { print charge / count }')
 #   if [ "$charge" -eq 0 ]; then
 #     tmux  set -ug '@battery_status'  \;\
 #           set -ug '@battery_bar'     \;\