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 2898ee596f0474ca1a8537bc769b2fd147b90017..456a04e522815c9fa9b50ebf352e0fa05354a7a8 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
@@ -371,6 +371,8 @@ The Upper Tester Application in SUT can be implemented as an embedded source cod
 
 The upper tester triggering message is used to transport control commands between Test System and the Upper Tester Application. The control command will contain essential parameters that are required for certain test case.
 
+Some missing text.
+
 The upper tester triggering message type maps to particular message formats for exchanging data and those message formats are defined by TTCN-3 primitive as shown at table 5.4.2.2.1-1, UtTrigger and UtTriggerAck primitive.