diff --git a/roles/web_svc/templates/tiles_vhost.j2 b/roles/web_svc/templates/tiles_vhost.j2
index 3e489c1..c7c0a47 100644
--- a/roles/web_svc/templates/tiles_vhost.j2
+++ b/roles/web_svc/templates/tiles_vhost.j2
@@ -30,7 +30,7 @@ server {
 
 		proxy_cache tilecache;
 		proxy_cache_background_update on;
-		proxy_cache_lock on;
+#		proxy_cache_lock on;
 		proxy_cache_use_stale error timeout invalid_header updating http_500 http_502 http_503 http_504;
 		proxy_cache_valid 200 7d;
 		proxy_cache_valid any 1m;
@@ -45,7 +45,7 @@ server {
 
 		proxy_cache tilecache;
 		proxy_cache_background_update on;
-		proxy_cache_lock on;
+#		proxy_cache_lock on;
 		proxy_cache_use_stale error timeout invalid_header updating http_500 http_502 http_503 http_504;
 		proxy_cache_valid 200 7d;
 		proxy_cache_valid any 1m;