diff --git a/loopy/codegen/control.py b/loopy/codegen/control.py
index 3e59907e4..044f03bea 100644
--- a/loopy/codegen/control.py
+++ b/loopy/codegen/control.py
@@ -475,7 +475,7 @@ def gen_code(inner_codegen_state):  # pylint: disable=function-redefined
                     condition_exprs = ([
                             constraint_to_cond_expr(cns)
                             for cns in bounds_checks]
-                            + list(sorted(pred_checks, key=lambda pred: repr(pred))))
+                            + sorted(pred_checks, key=lambda pred: repr(pred)))
 
                     prev_result = prev_gen_code(inner_codegen_state)