diff --git a/.gitignore b/.gitignore
index e0f9973..5a94d88 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 *.pyc
 dist/
 deb_dist/
+docker/src/
 build/
 env/
 _trial_temp/
diff --git a/Makefile b/Makefile
index 2b9c82f..31a7325 100644
--- a/Makefile
+++ b/Makefile
@@ -79,6 +79,7 @@ clean:
 deb_docker:  /opt/qemu/bin
 	@if ! [ -d /opt/qemu ]; then echo "Docker cross build requires patched QEMU!\nApply ./scripts/qemu/qemu.patch to qemu-7.2.0 and build it:\n  ./configure --prefix=/opt/qemu --static --disable-system && make && sudo make install"; exit 1; fi
 	if ! ls /proc/sys/fs/binfmt_misc | grep -q qemu ; then sudo ./scripts/qemu/qemu-binfmt-conf.sh --qemu-path /opt/qemu/bin --persistent yes; fi
+	cp -a Makefile docker/src/
 	TAG="wfb-ng:build-`date +%s`"; docker build -t $$TAG docker --build-arg SRC_IMAGE=$(DOCKER_SRC_IMAGE)  && \
 	docker run -i --rm -v $(PWD):/build $$TAG bash -c "trap 'chown -R --reference=. .' EXIT; export VERSION=$(VERSION) COMMIT=$(COMMIT) SOURCE_DATE_EPOCH=$(SOURCE_DATE_EPOCH) && cd /build && make clean && make test && make deb"
 	docker ps -a -f 'status=exited' --format '{{ .ID }} {{ .Image }}' | grep wfb-ng:build | tail -n+11 | while read c i ; do docker rm $$c && docker rmi $$i; done
diff --git a/docker/Dockerfile b/docker/Dockerfile
index b47c837..2c8329e 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -11,8 +11,8 @@ RUN apt-get update && \
     python3-future python3-all python3-all-dev \
     python3-serial dh-python python3-setuptools python3-msgpack
 
+
+COPY src/Makefile /tmp
 ENV ENV=/opt/env
 ENV PYTHON=python3
-
-RUN virtualenv --python=$PYTHON $ENV
-RUN $ENV/bin/pip install --upgrade pip setuptools git+https://github.com/svpcom/stdeb
+RUN cd /tmp && make $ENV
diff --git a/docker/src/.gitignore b/docker/src/.gitignore
new file mode 100644
index 0000000..e69de29