diff --git a/README.md b/README.md
index 7ed081e..8c1008a 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,7 @@ MLIR_DIR=$(pwd)/onnx-mlir/llvm-project/build/lib/cmake/mlir
 mkdir build && cd build
 cmake .. -G Ninja \
   -DCMAKE_BUILD_TYPE=Release \
+  -DONNX_MLIR_ACCELERATORS=PIM \
   -DLLVM_ENABLE_ASSERTIONS=ON \
   -DMLIR_DIR=${MLIR_DIR}
 cmake --build .