diff --git a/INSTALL.d/INSTALL.Debian.txt b/INSTALL.d/INSTALL.Debian.txt
index 4e008dc..87d2f85 100644
--- a/INSTALL.d/INSTALL.Debian.txt
+++ b/INSTALL.d/INSTALL.Debian.txt
@@ -33,6 +33,7 @@ apt install -y \
   libcrypt-openssl-rsa-perl \
   libdata-uniqid-perl \
   libfile-copy-recursive-perl \
+  libio-socket-inet6-perl \
   libio-socket-ssl-perl \
   libio-tee-perl \
   libhtml-parser-perl \