diff --git a/mongodb.yaml b/mongodb.yaml
index 801742a..7a81633 100644
--- a/mongodb.yaml
+++ b/mongodb.yaml
@@ -49,6 +49,7 @@ data:
                 rationale: MongoDB package.
                 ref: 3.4
                 buildorder: 2
+                # Not implemented yet - https://pagure.io/fm-orchestrator/issue/869 (hardcoded in mongodb spec)
                 arches: [ x86_64, ppc64le, aarch64, s390x ]
             python-pymongo:
                 rationale: Python MongoDB driver | MongoDB dependecy for running testsuite.