diff --git a/lib/manager/gitlabci-include/extract.ts b/lib/manager/gitlabci-include/extract.ts
index efdf7f3274118467cdb1c0dc6e1deb53c641c549..63e8921b5b90508e30f22212530923099161b68a 100644
--- a/lib/manager/gitlabci-include/extract.ts
+++ b/lib/manager/gitlabci-include/extract.ts
@@ -42,7 +42,7 @@ export function extractPackageFile(
       includes = [doc.include];
     }
     for (const includeObj of includes) {
-      if (includeObj.file && includeObj.project) {
+      if (includeObj?.file && includeObj.project) {
         const dep = extractDepFromIncludeFile(includeObj);
         if (config.endpoint) {
           dep.registryUrls = [config.endpoint.replace(/\/api\/v4\/?/, '')];