diff --git a/datokenizer_test.go b/datokenizer_test.go
index b6383d4..3cece06 100644
--- a/datokenizer_test.go
+++ b/datokenizer_test.go
@@ -38,6 +38,7 @@
 	assert.True(tmatch(dat, "bau"))
 	assert.True(tmatch(dat, "bauamt"))
 	assert.False(tmatch(dat, "baum"))
+	assert.False(tmatch(dat, "baua"))
 }
 
 func TestSimpleBranches(t *testing.T) {