diff --git a/builder/test-deb b/builder/test-deb
index 9114a3e..e0c7a2e 100755
--- a/builder/test-deb
+++ b/builder/test-deb
@@ -8,7 +8,7 @@ cd "$(dirname "$0")"
 docker build --build-arg KASMVNC_PACKAGE_DIR="build/${os_codename}" \
   -t kasmvnctester_${os}:$os_codename \
   -f dockerfile.${os}_${os_codename}.deb.test .
-docker run -it -p 443:8443 --rm \
+  docker run -it -v $(realpath ${PWD}/..):/src -p 8443:8443 --rm \
   -e KASMVNC_VERBOSE_LOGGING=$KASMVNC_VERBOSE_LOGGING \
   -e "VNC_USER=foo" -e "VNC_PW=foobar" \
   kasmvnctester_${os}:$os_codename