diff --git a/frontend-js/src/main/js/gui/admin/EditProjectDialog.js b/frontend-js/src/main/js/gui/admin/EditProjectDialog.js
index fc1c7333a0c1c0680655395ac32c43c596646053..67f1f7a15509a6a5d41a54291427020acfdbad2f 100644
--- a/frontend-js/src/main/js/gui/admin/EditProjectDialog.js
+++ b/frontend-js/src/main/js/gui/admin/EditProjectDialog.js
@@ -436,7 +436,8 @@ EditProjectDialog.prototype._createOverlayTable = function () {
   $(overlaysTable).on("click", "[name='downloadSource']", function () {
     var button = this;
     return self.getServerConnector().getOverlaySourceDownloadUrl({
-      overlayId: $(button).attr("data")
+      overlayId: $(button).attr("data"),
+      projectId:self.getProject().getProjectId()
     }).then(function (url) {
       return self.downloadFile(url);
     }).then(null, GuiConnector.alert);