diff --git a/tests/data/mock_manifests/Valid_none_value_test_manifest.csv b/tests/data/mock_manifests/Valid_none_value_test_manifest.csv
index b7a0666d6..f3c009e47 100644
--- a/tests/data/mock_manifests/Valid_none_value_test_manifest.csv
+++ b/tests/data/mock_manifests/Valid_none_value_test_manifest.csv
@@ -3,4 +3,4 @@ Sample ID,Patient ID,Tissue Status,Component
 2,2,Malignant,Biospecimen
 3,3,None,Biospecimen
 4,4,None,Biospecimen
-5,5,None,Biospecimen
\ No newline at end of file
+5,5,None,Biospecimen