diff --git a/pkgs/applications/misc/diff-pdf/default.nix b/pkgs/applications/misc/diff-pdf/default.nix
index 186826e6f7d..918605366fe 100644
--- a/pkgs/applications/misc/diff-pdf/default.nix
+++ b/pkgs/applications/misc/diff-pdf/default.nix
@@ -1,12 +1,5 @@
-{ lib, stdenv, fetchFromGitHub, autoconf, automake, pkg-config, cairo, poppler, wxGTK ? null, wxmac ? null, darwin ? null }:
+{ lib, stdenv, fetchFromGitHub, autoconf, automake, pkg-config, cairo, poppler, wxGTK, Cocoa }:
 
-let
-  wxInputs =
-    if stdenv.isDarwin then
-      [ wxmac darwin.apple_sdk.frameworks.Cocoa ]
-    else
-      [ wxGTK ];
-in
 stdenv.mkDerivation rec {
   pname = "diff-pdf";
   version = "0.5";
@@ -19,7 +12,8 @@ stdenv.mkDerivation rec {
   };
 
   nativeBuildInputs = [ autoconf automake pkg-config ];
-  buildInputs = [ cairo poppler ] ++ wxInputs;
+  buildInputs = [ cairo poppler wxGTK ]
+    ++ lib.optionals stdenv.isDarwin [ Cocoa ];
 
   preConfigure = "./bootstrap";
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 9cfdc1f70e0..575b50b1c35 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -30334,7 +30334,10 @@ with pkgs;
 
   diffpdf = libsForQt5.callPackage ../applications/misc/diffpdf { };
 
-  diff-pdf = callPackage ../applications/misc/diff-pdf { wxGTK = wxGTK31; };
+  diff-pdf = callPackage ../applications/misc/diff-pdf {
+    wxGTK = wxGTK32;
+    inherit (darwin.apple_sdk.frameworks) Cocoa;
+  };
 
   diffuse = callPackage ../applications/misc/diffuse { };