diff --git a/acer/predator/helios/300/ph315-51/default.nix b/acer/predator/helios/300/ph315-51/default.nix
index af215d2b..e331d209 100644
--- a/acer/predator/helios/300/ph315-51/default.nix
+++ b/acer/predator/helios/300/ph315-51/default.nix
@@ -15,6 +15,7 @@ in
   hardware = {
     nvidia = {
       modesetting.enable = mkDefault true;
+      powerManagement.enable = mkDefault true;
 
       prime = {
         sync.enable = mkDefault true;