diff --git a/build/docker/ubuntu/Dockerfile b/build/docker/ubuntu/Dockerfile
index d337033..1fe494b 100644
--- a/build/docker/ubuntu/Dockerfile
+++ b/build/docker/ubuntu/Dockerfile
@@ -190,7 +190,8 @@
     haxelib install hxcpp
 
 # Node.js
-RUN curl -sSL https://www.npmjs.com/install.sh | sh
+# temporarily removed since this breaks the build (and is not needed to test C# code)
+#RUN curl -sSL https://www.npmjs.com/install.sh | sh
 
 # D
 RUN curl -sSL http://downloads.dlang.org/releases/2.x/2.070.0/dmd_2.070.0-0_amd64.deb -o /tmp/dmd_2.070.0-0_amd64.deb && \