diff --git a/INSTALL.d/INSTALL.Docker_build.txt b/INSTALL.d/INSTALL.Docker_build.txt
index 248c76c..981edb7 100644
--- a/INSTALL.d/INSTALL.Docker_build.txt
+++ b/INSTALL.d/INSTALL.Docker_build.txt
@@ -41,6 +41,7 @@ RUN apt-get update \
   libunicode-string-perl \
   liburi-perl  \
   libwww-perl \
+  libio-socket-inet6-perl \
   procps \
   wget \
   && rm -rf /var/lib/apt/lists/*