diff --git a/systems/mmt.md b/systems/mmt.md
index e0d74f98c8b532bb407d4dbd68afd9c8c905a57a..480c2698a0b9c70d131766ed34ceef8e2209f13f 100644
--- a/systems/mmt.md
+++ b/systems/mmt.md
@@ -13,6 +13,12 @@ people:
     - miancu
     - fhorozal
 
+supported-by:
+    - oaf
+	- okd
+	- latin
+	- mathsearch
+
 website: https://uniformal.github.io/
 repository: https://github.com/Uniformal/MMT
 ---