diff --git a/setup.py b/setup.py
index 6e61cdd3..8e83eac7 100644
--- a/setup.py
+++ b/setup.py
@@ -81,7 +81,10 @@ def build_extension(self, ext):
             "-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=" + os.path.join(extdir, "amrex"),
             "-DCMAKE_VERBOSE_MAKEFILE=ON",
             "-DCMAKE_PYTHON_OUTPUT_DIRECTORY=" + extdir,
+            # CMake FindPython.cmake
             "-DPython_EXECUTABLE=" + sys.executable,
+            # pybind11 FindPythonLibsNew.cmake
+            "-DPYTHON_EXECUTABLE=" + sys.executable,
             "-DAMReX_SPACEDIM=" + dims,
             ## variants
             "-DAMReX_OMP=" + AMReX_OMP,