diff --git a/python_ta/debug/accumulation_table.py b/python_ta/debug/accumulation_table.py
index 5fcb1af6e..f964dcb19 100644
--- a/python_ta/debug/accumulation_table.py
+++ b/python_ta/debug/accumulation_table.py
@@ -94,7 +94,9 @@ def _record_iteration(self, frame: types.FrameType) -> None:
         for accumulator in self.loop_accumulators:
             if accumulator in frame.f_locals:
                 self.loop_accumulators[accumulator].append(copy.copy(frame.f_locals[accumulator]))
-            elif len(list(self.loop_variables.values())[0]) == 1:  # Checks if it's the first iteration
+            elif (
+                len(list(self.loop_variables.values())[0]) == 1
+            ):  # Checks if it's the first iteration
                 self.loop_accumulators[accumulator].append("N/A")
             else:
                 raise NameError
diff --git a/tests/test_debug/test_accumulation_table.py b/tests/test_debug/test_accumulation_table.py
index 2fe526ba3..8081a8574 100644
--- a/tests/test_debug/test_accumulation_table.py
+++ b/tests/test_debug/test_accumulation_table.py
@@ -204,8 +204,8 @@ def test_loop_variable_initialized_in_loop() -> None:
         for number in [10, 20, 30, 40, 50, 60]:
             i = number
 
-    assert table.loop_variables == {'number': ['N/A', 10, 20, 30, 40, 50, 60]}
-    assert table.loop_accumulators == {'i': ['N/A', 10, 20, 30, 40, 50, 60]}
+    assert table.loop_variables == {"number": ["N/A", 10, 20, 30, 40, 50, 60]}
+    assert table.loop_accumulators == {"i": ["N/A", 10, 20, 30, 40, 50, 60]}
 
 
 def test_uninitialized_loop_accumulators() -> None: