diff --git a/rdt/transformers/numerical.py b/rdt/transformers/numerical.py
index 6ed40e16b..f85e21a05 100644
--- a/rdt/transformers/numerical.py
+++ b/rdt/transformers/numerical.py
@@ -112,7 +112,7 @@ def _learn_rounding_digits(data):
                     return decimal
 
         # Can't round, not equal after MAX_DECIMALS digits of precision
-        LOGGER.info(f"No rounding scheme detected for column '{name}'. Data will not be rounded.")
+        LOGGER.info("No rounding scheme detected for column '%s'. Data will not be rounded.", name)
         return None
 
     def _raise_out_of_bounds_error(self, value, name, bound_type, min_bound, max_bound):
diff --git a/tests/unit/transformers/test_numerical.py b/tests/unit/transformers/test_numerical.py
index 95f2ff95d..36d26aad8 100644
--- a/tests/unit/transformers/test_numerical.py
+++ b/tests/unit/transformers/test_numerical.py
@@ -37,8 +37,8 @@ def test__learn_rounding_digits_more_than_15_decimals(self, logger_mock):
         output = FloatFormatter._learn_rounding_digits(data)
 
         # Assert
-        logger_msg = "No rounding scheme detected for column 'col'. Data will not be rounded."
-        logger_mock.info.assert_called_once_with(logger_msg)
+        logger_msg = "No rounding scheme detected for column '%s'. Data will not be rounded."
+        logger_mock.info.assert_called_once_with(logger_msg, 'col')
         assert output is None
 
     def test__learn_rounding_digits_less_than_15_decimals(self):