diff --git a/run.sh b/run.sh
index b12d250..d308f79 100755
--- a/run.sh
+++ b/run.sh
@@ -7,7 +7,7 @@ deactivate_venv() {
   [ -n "$VIRTUAL_ENV" ] && deactivate
 }
 
-configdir=$HOME/.config/tgschedpub
+config_dir=$HOME/.config/tgschedpub
 
 DIR="$(dirname "$(realpath "$0")")"
 cd "$DIR"
@@ -21,11 +21,11 @@ trap deactivate_venv EXIT INT TERM
 if [ $install -eq 1 ]; then pip install -r requirements.txt; fi
 
 [ -d "$configidr" ] || {
-  >&2 echo "error: config directory does not exists"
+  >&2 echo "error: config directory '$config_dir' does not exists"
   exit 1
 }
-[ -f "$configdir/config.yaml" ] || {
-  >&2 echo "error: $configdir/config.yaml does not exists"
+[ -f "$config_dir/config.yaml" ] || {
+  >&2 echo "error: $config_dir/config.yaml does not exists"
   exit 1
 }