diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 934f12a..5154e26 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -6,6 +6,8 @@ or the
 [gitter chat](https://gitter.im/cmusatyalab/openface).
 The [issue tracker](https://github.com/cmusatyalab/openface/issues)
 is only for development discussions and specific bug reports.
+For archival and management purposes,
+please do not post the same issue in multiple places.
 
 If you have found a bug in the code, please file an issue with a
 [minimal, complete, and verifiable example](http://stackoverflow.com/help/mcve)