diff --git a/test/cases/InvalidTokenArg.txt b/test/cases/InvalidTokenArg.txt
index 0581ff8..62eabe1 100644
--- a/test/cases/InvalidTokenArg.txt
+++ b/test/cases/InvalidTokenArg.txt
@@ -8,4 +8,4 @@ foo<e> { token<e> }
   token<x> { x "!" }
 }
 
-//! isn't found in this token group
+//! Reference to token rule 'bar', which isn't found
diff --git a/test/cases/UndefinedTokenRule.txt b/test/cases/UndefinedTokenRule.txt
index 44c37f6..e47f6c2 100644
--- a/test/cases/UndefinedTokenRule.txt
+++ b/test/cases/UndefinedTokenRule.txt
@@ -4,4 +4,4 @@
   X { y }
 }
 
-//! Reference to rule 'y'
+//! Reference to token rule 'y', which isn't found