diff --git a/aw-design-diagram/onboarding.md b/aw-design-diagram/onboarding.md
index 704efa00b0d920927666c080ddfe43ca6ee1feb8..105df24b2fa668c4e1a63678829a028da001aa1f 100644
--- a/aw-design-diagram/onboarding.md
+++ b/aw-design-diagram/onboarding.md
@@ -22,7 +22,7 @@
         aAdmin((Admin))
         aAdmin-->g-reg
         a-ocm["OCM Services"]-- Request -->a-afj
-        a-afj-- callback -->a-ocm
+        a-afj["AFJ"]-- callback -->a-ocm
         a-ocm-->a-db[(Database)]
         AISBL-- "Credential Issue v2" -->a-afj
         a-TSA["Trust Service API"]
@@ -32,7 +32,7 @@
         vAdmin((Admin))
         vAdmin-->g-reg
         v-ocm["OCM Services"]-- Request -->v-afj
-        v-afj-- callback -->v-ocm
+        v-afj["AFJ"]-- callback -->v-ocm
         v-ocm-->v-db[(Database)]
         AISBL-- "Credential Issue v2" -->v-afj
         v-TSA["Trust Service API"]