diff --git a/lib/api/api-router.js b/lib/api/api-router.js
index c9f1199e..e7acb779 100644
--- a/lib/api/api-router.js
+++ b/lib/api/api-router.js
@@ -25,7 +25,7 @@ const ClusterBackend = require('../backends/cluster');
 
 const LayergroupAffectedTablesCache = require('../cache/layergroup_affected_tables');
 const SurrogateKeysCache = require('../cache/surrogate_keys_cache');
-const VarnishHttpCacheBackend = require('../cache/backend/varnish_http');
+const VarnishHttpCacheBackend = require('../cache/backend/varnish-http');
 const FastlyCacheBackend = require('../cache/backend/fastly');
 const NamedMapProviderCache = require('../cache/named_map_provider_cache');
 const NamedMapsCacheEntry = require('../cache/model/named_maps_entry');
diff --git a/lib/cache/backend/varnish_http.js b/lib/cache/backend/varnish-http.js
similarity index 100%
rename from lib/cache/backend/varnish_http.js
rename to lib/cache/backend/varnish-http.js