diff --git a/pkgs/by-name/ma/manifold/package.nix b/pkgs/by-name/ma/manifold/package.nix
index 822feef1debf..1fd237fd97f8 100644
--- a/pkgs/by-name/ma/manifold/package.nix
+++ b/pkgs/by-name/ma/manifold/package.nix
@@ -11,13 +11,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "manifold";
-  version = "2.5.1-unstable-2024-08-18";
+  version = "2.5.1-unstable-2024-09-06";
 
   src = fetchFromGitHub {
     owner = "elalish";
     repo = "manifold";
-    rev = "74e15b1574ebe6ae01d1fd2cffbe75aeeb7b8fab";
-    hash = "sha256-T/uaiHNJvk16XobjJlVbawKJ2ktFaCtI63kTFc6Z5Fc=";
+    rev = "6f009ca13fab71e53f118179742cc2bb40455721";
+    hash = "sha256-McP/Rdxss93YHZcPSSWaRjyGgUiQJ3mZXgzcHWldORU=";
   };
 
   nativeBuildInputs = [ cmake ];
@@ -33,6 +33,7 @@ stdenv.mkDerivation (finalAttrs: {
     "-DCMAKE_BUILD_TYPE=Release"
     "-DBUILD_SHARED_LIBS=ON"
     "-DMANIFOLD_TEST=ON"
+    "-DMANIFOLD_CROSS_SECTION=ON"
     "-DMANIFOLD_PAR=TBB"
   ];