diff --git a/src/cmd/compile/internal/walk/builtin.go b/src/cmd/compile/internal/walk/builtin.go
index f5e558b471..018782211b 100644
--- a/src/cmd/compile/internal/walk/builtin.go
+++ b/src/cmd/compile/internal/walk/builtin.go
@@ -568,7 +568,7 @@ func walkMakeSlice(n *ir.MakeExpr, init *ir.Nodes) ir.Node {
 			// The conv is necessary in case n.Type is named.
 			return walkExpr(typecheck.Expr(typecheck.Conv(s, n.Type())), init)
 		}
-		tryStack = true
+		tryStack = base.Flag.N == 0
 	}
 
 	// The final result is assigned to this variable.