diff --git a/cmd/webserver.go b/cmd/webserver.go
index 7291574e..acdc454a 100644
--- a/cmd/webserver.go
+++ b/cmd/webserver.go
@@ -116,6 +116,7 @@ func startWebServer(c *core.CliContext) error {
 	router.StaticFile("favicon.png", filepath.Join(config.StaticRootPath, "favicon.png"))
 	router.StaticFile("touchicon.png", filepath.Join(config.StaticRootPath, "touchicon.png"))
 	router.StaticFile("manifest.json", filepath.Join(config.StaticRootPath, "manifest.json"))
+	router.StaticFile("sw.js", filepath.Join(config.StaticRootPath, "sw.js"))
 	router.GET("/server_settings.js", bindCachedJs(api.ServerSettings.ServerSettingsJavascriptHandler, serverSettingsCacheStore))
 
 	router.StaticFile("/mobile", filepath.Join(config.StaticRootPath, "mobile.html"))