diff --git a/pkgs/applications/video/mpv/default.nix b/pkgs/applications/video/mpv/default.nix
index 74eaf375a24d..68a8624c5eed 100644
--- a/pkgs/applications/video/mpv/default.nix
+++ b/pkgs/applications/video/mpv/default.nix
@@ -200,7 +200,7 @@ in stdenv.mkDerivation (finalAttrs: {
     cp ../TOOLS/mpv_identify.sh $out/bin
     cp ../TOOLS/umpv $out/bin
     cp $out/share/applications/mpv.desktop $out/share/applications/umpv.desktop
-    sed -i '/Icon=/ ! s/mpv/umpv/g' $out/share/applications/umpv.desktop
+    sed -i '/Icon=/ ! s/mpv/umpv/g; s/^Exec=.*/Exec=umpv %U/' $out/share/applications/umpv.desktop
   '' + lib.optionalString stdenv.isDarwin ''
     mkdir -p $out/Applications
     cp -r mpv.app $out/Applications