diff --git a/docker/run.sh b/docker/run.sh
index aca013b..4fe96f0 100644
--- a/docker/run.sh
+++ b/docker/run.sh
@@ -7,14 +7,15 @@ socket_path=/var/run/fail2ban/fail2ban.sock
 textfile_dir=/app/textfile/
 textfile_enabled=false
 
-# Enable textfile metrics if the folder exists (i.e. was mounted by docker)
-if [ -d $textfile_dir ]; then
-    textfile_enabled=true
-fi
-
 # Start the exporter (use exec to support graceful shutdown)
 # Inspired by: https://akomljen.com/stopping-docker-containers-gracefully/
-exec /app/fail2ban-prometheus-exporter \
-    --socket "$socket_path" \
-    --collector.textfile=$textfile_enabled \
-    --collector.textfile.directory="$textfile_dir"
+# Enable textfile metrics if the folder exists (i.e. was mounted by docker)
+if [ -d $textfile_dir ]; then
+  exec /app/fail2ban-prometheus-exporter \
+      --socket "$socket_path" \
+      --collector.textfile \
+      --collector.textfile.directory "$textfile_dir"
+else
+  exec /app/fail2ban-prometheus-exporter \
+      --socket "$socket_path"
+fi