diff --git a/builder/stage4/06-pisdr-gnuradio/00-packages-nr b/builder/stage4/06-pisdr-gnuradio/00-packages-nr
index 87daf88..828f084 100644
--- a/builder/stage4/06-pisdr-gnuradio/00-packages-nr
+++ b/builder/stage4/06-pisdr-gnuradio/00-packages-nr
@@ -10,6 +10,7 @@ libqwt-dev
 libsdl1.2-dev
 libusb-1.0-0-dev
 libasound2-dev
+libportaudio-dev
 pulseaudio
 libjack-dev
 libgmp-dev
diff --git a/builder/stage4/06-pisdr-gnuradio/00-run.sh b/builder/stage4/06-pisdr-gnuradio/00-run.sh
index de41918..477b408 100755
--- a/builder/stage4/06-pisdr-gnuradio/00-run.sh
+++ b/builder/stage4/06-pisdr-gnuradio/00-run.sh
@@ -13,6 +13,7 @@ git checkout maint-3.8
 git submodule update --init --recursive
 mkdir -p build
 cd build
+echo 'export PYTHONPATH=/usr/local/lib/python3/dist-packages:$PYTHONPATH' >> ~/.bashrc
 cmake -GNinja -DCMAKE_BUILD_TYPE=Release -DPYTHON_EXECUTABLE=/usr/bin/python3 ..
 ninja install
 ldconfig