diff --git a/tools/setup_helpers/cmake.py b/tools/setup_helpers/cmake.py
index 5481ce46031c..d50d9d547399 100644
--- a/tools/setup_helpers/cmake.py
+++ b/tools/setup_helpers/cmake.py
@@ -231,6 +231,7 @@ def generate(
                     "SELECTED_OP_LIST",
                     "TORCH_CUDA_ARCH_LIST",
                     "TRACING_BASED",
+                    "PYTHON_LIB_REL_PATH",
                 )
             }
         )