diff --git a/nix/plugin.nix b/nix/plugin.nix
index 9483077..0dd39e6 100644
--- a/nix/plugin.nix
+++ b/nix/plugin.nix
@@ -37,20 +37,10 @@ let
   # Args shared between the deps-only build (cached on Cargo.lock changes only)
   # and the final crate build. cxx-qt-build runs during the deps build too, so it
   # needs the Qt env to find qmltyperegistrar/qmlcachegen.
-  # Default cleanCargoSource only keeps .rs/.toml/.lock; also keep the linker
-  # --dynamic-list file referenced by build.rs.
-  pluginSrc = lib.cleanSourceWith {
-    src = ../plugin;
-    name = "nova-plugin-source";
-    filter =
-      path: type:
-      (baseNameOf path == "qt_plugin_exports.txt") || (craneLib.filterCargoSources path type);
-  };
-
   commonArgs = {
     pname = "nova-plugin";
     version = "0.1.0";
-    src = pluginSrc;
+    src = craneLib.cleanCargoSource ../plugin;
     strictDeps = true;
 
     nativeBuildInputs = [