diff --git a/backends/qualcomm/setup.md b/backends/qualcomm/setup.md
index 6c91b4c912..2d8aff0ac5 100644
--- a/backends/qualcomm/setup.md
+++ b/backends/qualcomm/setup.md
@@ -55,6 +55,13 @@ export LD_LIBRARY_PATH=$QNN_SDK_ROOT/lib/x86_64-linux-clang/:$LD_LIBRARY_PATH
 export PYTHONPATH=$EXECUTORCH_ROOT/..
 ```
 
+Note: Since we set `PYTHONPATH`, we may have issue with finding `program.fbs`
+and `scalar_type.fbs` when we export a model, because they are installed into
+`pip-out` directory with the same package name pattern. A workaround is that
+we copy `$EXECUTORCH_ROOT/pip-out/lib.linux-x86_64-cpython-310/executorch/exir/_serialize/program.fbs`
+and `$EXECUTORCH_ROOT/pip-out/lib.linux-x86_64-cpython-310/executorch/exir/_serialize/scalar_type.fbs`
+to `$EXECUTORCH_ROOT/exir/_serialize/`.
+
 
 ## End to End Inference