diff --git a/pkgs/by-name/ba/basalt-monado/package.nix b/pkgs/by-name/ba/basalt-monado/package.nix
index ee2294f50879..3a1acbf76abc 100644
--- a/pkgs/by-name/ba/basalt-monado/package.nix
+++ b/pkgs/by-name/ba/basalt-monado/package.nix
@@ -60,13 +60,15 @@ stdenv.mkDerivation {
     opencv.cxxdev
     tbb
     xorg.libX11
+  ]
+  ++ lib.optionals enableCuda [
+    cudaPackages.cuda_nvcc
   ];
 
   cmakeFlags = [
     (lib.cmakeBool "BASALT_INSTANTIATIONS_DOUBLE" false)
     (lib.cmakeBool "BUILD_TESTS" false)
     (lib.cmakeFeature "EIGEN_ROOT" "${eigen}/include/eigen3")
-    (lib.optionals enableCuda "-DCUDA_TOOLKIT_ROOT_DIR=${cudaPackages.cudatoolkit}")
   ];
 
   passthru.updateScript = nix-update-script { };
diff --git a/pkgs/by-name/mo/monado/package.nix b/pkgs/by-name/mo/monado/package.nix
index aff6ab89d4c5..5cc46c2ac552 100644
--- a/pkgs/by-name/mo/monado/package.nix
+++ b/pkgs/by-name/mo/monado/package.nix
@@ -143,6 +143,10 @@ stdenv.mkDerivation (finalAttrs: {
   ]
   ++ lib.optionals tracingSupport [
     tracy
+  ]
+  ++ lib.optionals enableCuda [
+    cudaPackages.cuda_nvcc
+    cudaPackages.cuda_cudart
   ];
 
   cmakeFlags = [
@@ -151,7 +155,6 @@ stdenv.mkDerivation (finalAttrs: {
     (lib.cmakeBool "XRT_FEATURE_TRACING" tracingSupport)
     (lib.cmakeBool "XRT_OPENXR_INSTALL_ABSOLUTE_RUNTIME_PATH" true)
     (lib.cmakeBool "XRT_HAVE_STEAM" true)
-    (lib.optionals enableCuda "-DCUDA_TOOLKIT_ROOT_DIR=${cudaPackages.cudatoolkit}")
   ];
 
   # Help openxr-loader find this runtime