diff --git a/jicofo-selector/src/main/resources/reference.conf b/jicofo-selector/src/main/resources/reference.conf
index 66f80586a5..1e8a5c4bb2 100644
--- a/jicofo-selector/src/main/resources/reference.conf
+++ b/jicofo-selector/src/main/resources/reference.conf
@@ -177,7 +177,7 @@ jicofo {
         enabled = false
         id = 10
       }
-      extmap-allow-mixed = false
+      extmap-allow-mixed = true
     }
   }