diff --git a/docs/architecture.md b/docs/architecture.md
index 2f58a86..11ef1ed 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -30,7 +30,7 @@ sequenceDiagram
   e->>e: validate Schematron
   e->>e: create Validator Report
   e->>+c: execute configuration report generator
-  e->>-c: return XPATH of acceptance message
+  c->>-e: return XPATH of acceptance message
   
 ```