diff --git a/.vscodeignore b/.vscodeignore
index c33036f..ac86ca0 100644
--- a/.vscodeignore
+++ b/.vscodeignore
@@ -1,14 +1,16 @@
 **/*.map
 **/tslint.json
-.github/**/*
+.git/
+.github/
 .gitignore
 .prettierrc.json
-.vscode-test/**
+.user-data-dir-test/
 .vscode/
+.vscode-test/
 SECURITY.md
 build/
 docs/
-node_modules
+node_modules/
 out/
 src/
 test/
diff --git a/build/Dockerfile b/build/Dockerfile
index 2d70051..3a9b37d 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -27,7 +27,7 @@
 ENV DEBIAN_FRONTEND noninteractive
 
 RUN apt-get update && apt-get install -y libnss3 libgtk-3-dev libxss1 libasound2 xvfb libsecret-1-0
-RUN npm install -g vsce
+RUN npm install -g typescript vsce
 
 WORKDIR /workspace
 ENTRYPOINT ["build/all.bash"]