diff --git a/Makefile b/Makefile
index e0c7f5fa0364b155fb143002fc4ac7053d103a42..174e930104febf9464fc46456b4f4ac1eea07954 100644
--- a/Makefile
+++ b/Makefile
@@ -206,8 +206,17 @@ prepare_done:
 # packaging action
 #########################################################################
 
+builder_image:
+	@make -C docker build
+
 packages: package_deb package_snap package_osx package_win
 
+package_snap_in_docker:
+	@make -C docker package_snap
+
+package_win_in_docker:
+	@make -C docker package_win
+
 package_snap:
 	@make -C build/${PROVIDER} pkg_snap
 
diff --git a/docker/README.md b/docker/README.md
index 59fc06f960214e9c18ab8be7c1191684c475647c..1637d363fc4c8c5f3a8183dbaf4c2eb5787d7b5f 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -1,4 +1,5 @@
 You can use the makefile to build the image.
+
 "make packages" will build packages inside the builder container.
 
 Use https://github.com/kalikaneko/squid-in-a-can if you want to save some bandwith while building your images.
diff --git a/docker/builder.sh b/docker/builder.sh
index f9577f354c5fe894c6ac41dcf3e5f258c3b1d25a..482021acb3efbaf366669c0357e55f613c816695 100755
--- a/docker/builder.sh
+++ b/docker/builder.sh
@@ -12,7 +12,7 @@ case $TYPE in
         echo "[+] Building SNAP"
         make package_snap
         ;;
-    default)
+    *)
         make build
         ;;
 esac