diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 5a17a5930c0098945dfffa348aeaf26b805a7e45..f75335fbd11225c647c7115f7e8aa92b0cd9f0cc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -144,6 +144,7 @@ trigger lecture:
   variables:
     DUMUX_MERGE_REQUEST_SOURCE_BRANCH: $CI_MERGE_REQUEST_SOURCE_BRANCH_NAME
     DUMUX_MERGE_REQUEST_SOURCE_PROJECT_URL: $CI_MERGE_REQUEST_SOURCE_PROJECT_URL
+    DUMUX_MERGE_REQUEST_SOURCE_PROJECT_PATH: $CI_MERGE_REQUEST_SOURCE_PROJECT_PATH
     DUMUX_MERGE_REQUEST_TARGET_BRANCH: $CI_MERGE_REQUEST_TARGET_BRANCH_NAME
     DUMUX_COMMIT_SHA: $CI_COMMIT_SHA
     DUMUX_REFERENCE_SHA: $CI_REFERENCE_SHA