diff --git a/package/gnuradio/gnuradio.mk b/package/gnuradio/gnuradio.mk
index 85b359088e..4e82c9e129 100644
--- a/package/gnuradio/gnuradio.mk
+++ b/package/gnuradio/gnuradio.mk
@@ -119,6 +119,10 @@ GNURADIO_CONF_OPTS += -DENABLE_PYTHON=ON
 # mandatory to avoid pybind11 to overwrite variables provided
 # by gnuradio and buildroot
 GNURADIO_CONF_OPTS += -DPYBIND11_PYTHONLIBS_OVERWRITE=OFF
+# mandatory to avoid pybind11 to force libraries extensions
+# with a name based on host architecture
+GNURADIO_CONF_ENV += _PYTHON_SYSCONFIGDATA_NAME="$(PKG_PYTHON_SYSCONFIGDATA_NAME)" \
+	PYTHONPATH=$(PYTHON3_PATH)
 # mandatory to install python modules in site-packages and to use
 # correct path for python libraries
 GNURADIO_CONF_OPTS += -DGR_PYTHON_RELATIVE=ON \