diff --git a/pkgs/development/python-modules/torch/source/default.nix b/pkgs/development/python-modules/torch/source/default.nix
index 1936a0c89abd..c83efca823d4 100644
--- a/pkgs/development/python-modules/torch/source/default.nix
+++ b/pkgs/development/python-modules/torch/source/default.nix
@@ -493,9 +493,9 @@ buildPythonPackage.override { inherit stdenv; } (finalAttrs: {
   cmakeFlags = [
     (lib.cmakeFeature "PYTHON_SIX_SOURCE_DIR" "${six.src}")
     # (lib.cmakeBool "CMAKE_FIND_DEBUG_MODE" true)
-    (lib.cmakeFeature "CUDAToolkit_VERSION" cudaPackages.cudaMajorMinorVersion)
   ]
   ++ lib.optionals cudaSupport [
+    (lib.cmakeFeature "CUDAToolkit_VERSION" cudaPackages.cudaMajorMinorVersion)
     # Unbreaks version discovery in enable_language(CUDA) when wrapping nvcc with ccache
     # Cf. https://gitlab.kitware.com/cmake/cmake/-/issues/26363
     (lib.cmakeFeature "CMAKE_CUDA_COMPILER_TOOLKIT_VERSION" cudaPackages.cudaMajorMinorVersion)