diff --git a/token_writer_test.go b/token_writer_test.go
index a27ae1c..868e69d 100644
--- a/token_writer_test.go
+++ b/token_writer_test.go
@@ -34,7 +34,7 @@
 func TestTokenWriterFromOptions(t *testing.T) {
 	assert := assert.New(t)
 
-	mat := LoadMatrixFile("testdata/tokenizer.matok")
+	mat := LoadMatrixFile("testdata/tokenizer_de.matok")
 	assert.NotNil(mat)
 
 	b := make([]byte, 0, 2048)