diff --git a/TS-0019-Abstract_Test_Suite_&_implementation_eXtra_Information_for_Test.md b/TS-0019-Abstract_Test_Suite_&_implementation_eXtra_Information_for_Test.md
index 8d448067dcb9c87670094ebb37a397925cb09a7d..89adfc90d7bb004bc9f8bc192caada67f27a4495 100644
--- a/TS-0019-Abstract_Test_Suite_&_implementation_eXtra_Information_for_Test.md
+++ b/TS-0019-Abstract_Test_Suite_&_implementation_eXtra_Information_for_Test.md
@@ -379,8 +379,8 @@ The upper tester triggering message type maps to particular message formats for
 |Upper Tester Control Message Type |TTCN-3 Primitives |Direction |Direction |
 |-|-|-|-|
 |Upper Tester Control Message Type |TTCN-3 Primitives |TS |UT |
-|Trigger |UtTrigger Primitive | | |
-|Trigger Acknowledgement |UtTriggerAck Primitive | | |
+|Trigger |UtTrigger Primitive |TS |UT |
+|Trigger Acknowledgement |UtTriggerAck Primitive |TS |UT |