diff --git a/utils/prerequisites.sh b/utils/prerequisites.sh
index 98bf0097..1857df04 100644
--- a/utils/prerequisites.sh
+++ b/utils/prerequisites.sh
@@ -18,6 +18,8 @@ dos2unix | \
 sed '/^#/ d' | \
 # Remove http(s)://
 cut -f 3 -d '/' | \
+# Remove port number
+cut -f 1 -d ':' | \
 # Remove www
 # Only matches domains that start with www
 # Not examplewww.com