diff --git a/Dockerfile.cuda b/Dockerfile.cuda
index 13fef89..4deb724 100644
--- a/Dockerfile.cuda
+++ b/Dockerfile.cuda
@@ -11,7 +11,7 @@ COPY . .
 
 ARG CUDACXX=/usr/local/cuda/bin/nvcc
 RUN cmake . -B ./build -DSD_CUDA=ON
-RUN cmake --build ./build --config Release --parallel
+RUN cmake --build ./build --config Release -j$(nproc)
 
 FROM nvidia/cuda:${CUDA_VERSION}-cudnn-runtime-ubuntu${UBUNTU_VERSION} AS runtime