diff --git a/packages/cli/src/WebhookHelpers.ts b/packages/cli/src/WebhookHelpers.ts
index f0d5f63818..4f6c540bf8 100644
--- a/packages/cli/src/WebhookHelpers.ts
+++ b/packages/cli/src/WebhookHelpers.ts
@@ -463,6 +463,9 @@ export function getWebhookBaseUrl() {
 		// @ts-ignore
 		urlBaseWebhook = process.env.WEBHOOK_TUNNEL_URL || process.env.WEBHOOK_URL;
 	}
+	if (!urlBaseWebhook.endsWith('/')) {
+		urlBaseWebhook += '/';
+	}
 
 	return urlBaseWebhook;
 }