diff --git a/lib/manager/gitlabci-include/extract.js b/lib/manager/gitlabci-include/extract.js
index 48272e7a21d37c098f3022621c4124d2eae1b53f..178f5a9e29ccf606a2b96db3097ebcb07e2e841b 100644
--- a/lib/manager/gitlabci-include/extract.js
+++ b/lib/manager/gitlabci-include/extract.js
@@ -30,7 +30,9 @@ function extractPackageFile(content, packageFile, config) {
       for (const includeObj of doc.include) {
         const dep = extractDepFromInclude(includeObj);
         if (dep) {
-          dep.registryUrls = [config.endpoint.replace('/api/v4/', '')];
+          if (config.endpoint) {
+            dep.registryUrls = [config.endpoint.replace('/api/v4/', '')];
+          }
           deps.push(dep);
         }
       }