diff --git a/flake.nix b/flake.nix
index 1041c4f353..238ab550f7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -27,7 +27,7 @@
           src = ./.;
           flash = fw: ''
             echo "Flashing ${fw}.hex ..."
-            ${pkgs.teensy-loader-cli}/bin/teensy-loader-cli -mmcu=atmega32u4 -v -w ${fw}.hex
+            ${pkgs.qmk}/bin/qmk flash ${fw}.hex
           '';
         };
       }