diff --git a/aw-design-diagram/er-diagram.md b/aw-design-diagram/er-diagram.md
index 3e26330ec16b82dfb4c4adeb9157193a5a215b8d..e53a4a716d05e3be357a6429b93cd490f6e20a40 100644
--- a/aw-design-diagram/er-diagram.md
+++ b/aw-design-diagram/er-diagram.md
@@ -111,6 +111,7 @@
             uuid id
             uuid exchange_id
             uuid cred_def_id
+            string connection_id
             string participant_id
             string principal_did
             DateTime created_date