diff --git a/home/hyprland/default.nix b/home/hyprland/default.nix
index 31e300e2..5e563b8c 100644
--- a/home/hyprland/default.nix
+++ b/home/hyprland/default.nix
@@ -55,6 +55,7 @@
       associations = {
         "image/jpeg" = [ "swayimg.desktop" ];
         "image/png" = [ "swayimg.desktop" ];
+        "video/mp4" = [ "mpv.desktop" ];
         "application/pdf" = [ "zathura.desktop" "emacs.desktop" ];
         "application/json" = [ "emacs.desktop" "firefox.desktop" ];
         "application/x-yaml" = [ "emacs.desktop" ];