diff --git a/src/cunumeric/unary/scalar_unary_red_template.inl b/src/cunumeric/unary/scalar_unary_red_template.inl
index 251d5ae3f..b1b3a6729 100644
--- a/src/cunumeric/unary/scalar_unary_red_template.inl
+++ b/src/cunumeric/unary/scalar_unary_red_template.inl
@@ -264,8 +264,9 @@ static void scalar_unary_red_template(TaskContext& context)
   bool has_where   = scalars[2].value<bool>();
   size_t start_idx = has_where ? 2 : 1;
   std::vector<Store> extra_args;
+  extra_args.reserve(inputs.size());
   for (size_t idx = start_idx; idx < inputs.size(); ++idx)
-    extra_args.push_back(std::move(inputs[idx]));
+     extra_args.emplace_back(std::move(inputs[idx]));
   // If the RHS was a scalar, use (1,) as the shape
   if (shape.dim == 0) {
     shape.dim = 1;