diff --git a/cmd/meeting-api/platforms/zoom.go b/cmd/meeting-api/platforms/zoom.go
index 4d36643b..e17b87d2 100644
--- a/cmd/meeting-api/platforms/zoom.go
+++ b/cmd/meeting-api/platforms/zoom.go
@@ -78,7 +78,8 @@ func SetupZoom(config ZoomConfig) ZoomConfig {
 		slog.Info("Zoom webhook validation configured")
 		config.Validator = validator
 	default:
-		slog.Warn("Zoom webhook validation not configured", logging.PriorityCritical())
+		slog.Warn("Zoom webhook validation not configured - using mock validator", logging.PriorityCritical())
+		config.Validator = webhook.NewMockWebhookValidator()
 	}
 
 	return config