diff --git a/pkgs/shells/fish/plugins/build-fish-plugin.nix b/pkgs/shells/fish/plugins/build-fish-plugin.nix
index ce8b99cca1af..70597c2441ee 100644
--- a/pkgs/shells/fish/plugins/build-fish-plugin.nix
+++ b/pkgs/shells/fish/plugins/build-fish-plugin.nix
@@ -4,83 +4,72 @@
   writeScript,
   wrapFish,
 }:
-
-attrs@{
-  pname,
-  version,
-  src,
-
-  name ? "fishplugin-${pname}-${version}",
-  unpackPhase ? "",
-  configurePhase ? ":",
-  buildPhase ? ":",
-  preInstall ? "",
-  postInstall ? "",
-
-  nativeCheckInputs ? [ ],
-  # plugin packages to add to the vendor paths of the test fish shell
-  checkPlugins ? [ ],
-  # vendor directories to add to the function path of the test fish shell
-  checkFunctionDirs ? [ ],
-  # test script to be executed in a fish shell
-  checkPhase ? "",
-  doCheck ? checkPhase != "",
-
-  ...
-}:
-
-let
-  # Do not pass attributes that are only relevant to buildFishPlugin to mkDerivation.
-  drvAttrs = removeAttrs attrs [
+lib.extendMkDerivation {
+  constructDrv = stdenv.mkDerivation;
+  excludeDrvArgNames = [
     "checkPlugins"
     "checkFunctionDirs"
   ];
-in
+  extendDrvArgs =
+    finalAttrs:
+    {
+      name ? "fishplugin-${finalAttrs.pname}-${finalAttrs.version}",
+      unpackPhase ? "",
+      configurePhase ? ":",
+      buildPhase ? ":",
 
-stdenv.mkDerivation (
-  drvAttrs
-  // {
-    inherit name;
-    inherit unpackPhase configurePhase buildPhase;
+      nativeCheckInputs ? [ ],
+      # plugin packages to add to the vendor paths of the test fish shell
+      checkPlugins ? [ ],
+      # vendor directories to add to the function path of the test fish shell
+      checkFunctionDirs ? [ ],
+      # test script to be executed in a fish shell
+      checkPhase ? "",
+      doCheck ? checkPhase != "",
 
-    inherit preInstall postInstall;
-    installPhase = ''
-      runHook preInstall
+      ...
+    }:
+    {
+      inherit name;
+      inherit unpackPhase configurePhase buildPhase;
 
-      (
-        install_vendor_files() {
-          source="$1"
-          target="$out/share/fish/vendor_$2.d"
+      installPhase = ''
+        runHook preInstall
 
-          # Check if any .fish file exists in $source
-          [ -n "$(shopt -s nullglob; echo $source/*.fish)" ] || return 0
+        (
+          install_vendor_files() {
+            source="$1"
+            target="$out/share/fish/vendor_$2.d"
 
-          mkdir -p $target
-          cp $source/*.fish "$target/"
-        }
+            # Check if any .fish file exists in $source
+            [ -n "$(shopt -s nullglob; echo $source/*.fish)" ] || return 0
 
-        install_vendor_files completions completions
-        install_vendor_files functions functions
-        install_vendor_files conf conf
-        install_vendor_files conf.d conf
-      )
+            mkdir -p $target
+            cp $source/*.fish "$target/"
+          }
 
-      runHook postInstall
-    '';
+          install_vendor_files completions completions
+          install_vendor_files functions functions
+          install_vendor_files conf conf
+          install_vendor_files conf.d conf
+        )
 
-    inherit doCheck;
+        runHook postInstall
+      '';
 
-    nativeCheckInputs = [
-      (wrapFish {
-        pluginPkgs = checkPlugins;
-        functionDirs = checkFunctionDirs;
-      })
-    ]
-    ++ nativeCheckInputs;
+      inherit doCheck;
 
-    checkPhase = ''
-      export HOME=$(mktemp -d)  # fish wants a writable home
-      fish "${writeScript "${name}-test" checkPhase}"
-    '';
-  }
-)
+      nativeCheckInputs = [
+        (wrapFish {
+          pluginPkgs = checkPlugins;
+          functionDirs = checkFunctionDirs;
+        })
+      ]
+      ++ nativeCheckInputs;
+
+      checkPhase = ''
+        export HOME=$(mktemp -d)  # fish wants a writable home
+        fish "${writeScript "${finalAttrs.name}-test" checkPhase}"
+      '';
+    };
+}