diff --git a/scm-ui/ui-webapp/src/repos/sources/modules/sources.ts b/scm-ui/ui-webapp/src/repos/sources/modules/sources.ts
index 7d2b8c94a7..7977d9f3e0 100644
--- a/scm-ui/ui-webapp/src/repos/sources/modules/sources.ts
+++ b/scm-ui/ui-webapp/src/repos/sources/modules/sources.ts
@@ -28,7 +28,7 @@ export function fetchSourcesWithoutOptionalLoadingState(
       .then(response => response.json())
       .then((sources: File) => {
         dispatch(fetchSourcesSuccess(repository, revision, path, sources));
-        if (sources._embedded.children && sources._embedded.children.find(c => c.partialResult)) {
+        if (sources._embedded && sources._embedded.children && sources._embedded.children.find(c => c.partialResult)) {
           setTimeout(() => dispatch(fetchSourcesWithoutOptionalLoadingState(repository, revision, path, false)), 3000);
         }
       })