diff --git a/lib/lib.sh b/lib/lib.sh
index 7ed14a1..d900dd9 100644
--- a/lib/lib.sh
+++ b/lib/lib.sh
@@ -29,7 +29,6 @@ IP=$(hostname -I | cut -f1 -d' ')
 RELEASE_NUMBERS="7.0 8.0"
 
 PREFIX===============
-HOST_PORT=$IP:3000
 export DIR=/tmp/forgejo-end-to-end
 DIR_BINARIES=/srv/forgejo-binaries
 export DOT_FORGEJO_CURL=$DIR/forgejo-curl
@@ -258,6 +257,17 @@ function start() {
     start_forgejo $version
 }
 
+function get_host_port() {
+    local config="$1"
+    if test -z "$config" ; then
+	echo "$IP:3000"
+    else
+	echo "$IP:$(sed -n -e 's/^HTTP_PORT *= *\(.*\)/\1/p' < $config)"
+    fi
+}
+
+HOST_PORT=$(get_host_port)
+
 function work_path_base() {
     local config="$1"
     if test -z "$config" ; then