diff --git a/pkgs/applications/video/mpv/scripts/buildLua.nix b/pkgs/applications/video/mpv/scripts/buildLua.nix
index cb29a4c9d1a9..0027fa722596 100644
--- a/pkgs/applications/video/mpv/scripts/buildLua.nix
+++ b/pkgs/applications/video/mpv/scripts/buildLua.nix
@@ -36,6 +36,9 @@ lib.makeOverridable (args: stdenvNoCC.mkDerivation (extendedBy
     dontBuild = true;
     preferLocalBuild = true;
 
+    # Prevent `patch` from emitting `.orig` files (that end up in the output)
+    patchFlags = [ "--no-backup-if-mismatch" "-p1" ];
+
     outputHashMode = "recursive";
     installPhase = ''
       runHook preInstall