diff --git a/test/unit_tests/test_predictor.py b/test/unit_tests/test_predictor.py
index f429475..522ec4b 100644
--- a/test/unit_tests/test_predictor.py
+++ b/test/unit_tests/test_predictor.py
@@ -5,7 +5,7 @@ def test_predict_pdf_works(predictor, test_pdf):
     assert predictions["class"] == "formula"
     probabilities = predictions["probabilities"]
     # Floating point precision problem for output so test only that keys exist not the values
-    assert all (key in probabilities for key in ("formula", "other", "signature", "logo"))
+    assert all(key in probabilities for key in ("formula", "other", "signature", "logo"))
     metadata = list(metadata)
     metadata = dict(**metadata[0])
     metadata.pop("document_filename")  # temp filename cannot be tested