diff --git a/extras/hs-test/script/build_hst.sh b/extras/hs-test/script/build_hst.sh
index 0897813..cc2d00b 100755
--- a/extras/hs-test/script/build_hst.sh
+++ b/extras/hs-test/script/build_hst.sh
@@ -55,8 +55,12 @@
 docker_build () {
     tag=$1
     dockername=$2
-    docker build --build-arg UBUNTU_VERSION --build-arg http_proxy=$HTTP_PROXY \
-		--build-arg https_proxy=$HTTP_PROXY -t $tag  -f docker/Dockerfile.$dockername .
+    docker build --build-arg UBUNTU_VERSION             \
+                 --build-arg http_proxy=$HTTP_PROXY     \
+                 --build-arg https_proxy=$HTTP_PROXY    \
+                 --build-arg HTTP_PROXY=$HTTP_PROXY     \
+                 --build-arg HTTPS_PROXY=$HTTP_PROXY    \
+                 -t $tag -f docker/Dockerfile.$dockername .
 }
 
 docker_build hs-test/vpp vpp