diff --git a/plugins/nginx-vhosts/install b/plugins/nginx-vhosts/install
index a961cd50a..5db3c4c74 100755
--- a/plugins/nginx-vhosts/install
+++ b/plugins/nginx-vhosts/install
@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 set -eo pipefail; [[ $DOKKU_TRACE ]] && set -x
+source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
 
 case "$DOKKU_DISTRO" in
   debian)