diff --git a/sysexecution/stack_handler/roll_orders.py b/sysexecution/stack_handler/roll_orders.py
index dc3851383d..2489c3534c 100644
--- a/sysexecution/stack_handler/roll_orders.py
+++ b/sysexecution/stack_handler/roll_orders.py
@@ -472,14 +472,17 @@ def get_strategy_name_with_largest_position_for_instrument(
     )
 
     try:
-        strategy_name =         all_instrument_positions.strategy_name_with_largest_abs_position_for_instrument(
-                instrument_code
-            )
+        strategy_name = all_instrument_positions.strategy_name_with_largest_abs_position_for_instrument(
+            instrument_code
+        )
     except:
         ## corner case where nets out to 0
         strategies = diag_positions.get_list_of_strategies_with_positions()
         strategy_name = strategies[0]
-        data.log.debug("No strategies have net positions in %s, using arbitrary strategy %s" % (instrument_code, strategy_name))
+        data.log.debug(
+            "No strategies have net positions in %s, using arbitrary strategy %s"
+            % (instrument_code, strategy_name)
+        )
 
     return strategy_name