diff --git a/playbooks/mpdf.yaml b/playbooks/mpdf.yaml
index dfe98bd..1f7b94b 100644
--- a/playbooks/mpdf.yaml
+++ b/playbooks/mpdf.yaml
@@ -5,7 +5,7 @@
     count: 5
     path: /var/lib
     service_name: "{{ mpd + item }}"    
-    playlist_directory: "{{ %s/%s/playlist/ % (path, service_name) }}"
+    playlist_directory: "{{ '%s/%s/playlist/' % (path, service_name) }}"
     db_file: tag_cache
     log_file: mpd.log
     pid_file: pid