diff --git a/asterisk/AMI_Functions.ttcn b/asterisk/AMI_Functions.ttcn
index c1211a9..3044c17 100644
--- a/asterisk/AMI_Functions.ttcn
+++ b/asterisk/AMI_Functions.ttcn
@@ -26,7 +26,7 @@
 }
 
 const charstring AMI_FIELD_ACTION := "Action";
-const charstring AMI_FIELD_ACTION_ID := "ActionId";
+const charstring AMI_FIELD_ACTION_ID := "ActionID";
 const charstring AMI_FIELD_USERNAME := "Username";
 const charstring AMI_FIELD_SECRET := "Secret";
 const charstring AMI_FIELD_RESPONSE := "Response";