diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 169884f8f..dbb66bb89 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -69,7 +69,7 @@ jobs:
         sudo dpkg -i cuda-keyring_1.1-1_all.deb
         sudo apt update
         sudo apt install -y cuda-toolkit
-        echo "CUDA_BUILD_OPTS=-DENABLE_CUDA=ON -DTTG_ENABLE_CUDA=ON -DCMAKE_CUDA_COMPILER=/usr/local/cuda-12.6/bin/nvcc -DCMAKE_CUDA_HOST_COMPILER=${{ matrix.cxx }}" >> $GITHUB_ENV
+        echo "CUDA_BUILD_OPTS=-DENABLE_CUDA=ON -DTTG_ENABLE_CUDA=ON -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-12.6 -DCMAKE_CUDA_COMPILER=/usr/local/cuda-12.6/bin/nvcc -DCMAKE_CUDA_HOST_COMPILER=${{ matrix.cxx }}" >> $GITHUB_ENV
 
     - name: Create Build Environment
       # Some projects don't allow in-source building, so create a separate build directory