diff --git a/spec/services/taf_block_spec.rb b/spec/services/taf_block_spec.rb
index e92de020c..e3fd65a69 100644
--- a/spec/services/taf_block_spec.rb
+++ b/spec/services/taf_block_spec.rb
@@ -57,6 +57,7 @@
             BType=1
             Date=05.10.2024
             TaxId="MwSt38"
+            MkTxB=1
             Text="Lorem ipsum"
             Text2="Second Line, but its longer than sixty ""chars"", "
             Type=0
@@ -84,6 +85,7 @@
             BType=1
             Date=05.10.2024
             TaxId="MwSt38"
+            MkTxB=1
             Text="Lorem ipsum"
             Text2="Second Line, but its longer than sixty ""chars"", "
             Type=0