diff --git a/input/image.sh b/input/image.sh
index 7f316a1..d3da297 100755
--- a/input/image.sh
+++ b/input/image.sh
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 VERSION="1"
-RUNTIME_PACKAGES="python3 udev alsa-utils alsa-utils-doc alsa-lib alsaconf py3-rpigpio py3-pip py3-numpy py3-kiwisolver py3-scikit-learn py3-scipy py3-joblib py3-cycler py3-matplotlib py3-simplejson"
+RUNTIME_PACKAGES="python3 udev alsa-utils alsa-utils-doc alsa-lib alsaconf py3-rpigpio py3-pip py3-numpy py3-kiwisolver py3-scikit-learn py3-scipy py3-joblib py3-cycler py3-matplotlib py3-simplejson py3-tqdm"
 BUILD_PACKAGES="alsa-lib-dev gcc g++ python3-dev musl-dev py3-numpy-dev"
 
 # put back the resolv.conf to keep apk working
@@ -50,6 +50,9 @@ chroot_exec pip3 install -r /opt/iot-logic/requirements.txt
 # clean build dependencies
 chroot_exec apk del $BUILD_PACKAGES
 
+# dirty hack, so that there won't be pyc files compiled for the wrong architecture
+find ${ROOTFS_PATH}/usr -name '*.pyc' -delete
+
 # Put back resolv.conf where it was
 rm ${ROOTFS_PATH}/etc/resolv.conf
 ln -fs /data/etc/resolv.conf ${ROOTFS_PATH}/etc/resolv.conf