diff --git a/docker/bldr-ubuntu18-c-go/Dockerfile b/docker/bldr-ubuntu18-c-go/Dockerfile
index bcb09e6..d9f1fe5 100644
--- a/docker/bldr-ubuntu18-c-go/Dockerfile
+++ b/docker/bldr-ubuntu18-c-go/Dockerfile
@@ -36,6 +36,7 @@
     python-dev \
     pkg-config \
     software-properties-common \
+    sudo \
     wget \
     zlib1g \
     zlib1g-dev \