diff --git a/packages/server/src/templates/index.ts b/packages/server/src/templates/index.ts
index c42dd1b7..80a89887 100644
--- a/packages/server/src/templates/index.ts
+++ b/packages/server/src/templates/index.ts
@@ -35,7 +35,7 @@ export const generateRandomDomain = ({
 	projectName,
 }: Schema): string => {
 	const hash = randomBytes(3).toString("hex");
-	const slugIp = serverIp.replaceAll(".", "-");
+	const slugIp = serverIp.replaceAll(".", "-").replaceAll(":", "-");
 
 	return `${projectName}-${hash}${slugIp === "" ? "" : `-${slugIp}`}.traefik.me`;
 };