diff --git a/go-backend/internal/validation/setup.go b/go-backend/internal/validation/setup.go
index 5dd5e02..bd9dddd 100644
--- a/go-backend/internal/validation/setup.go
+++ b/go-backend/internal/validation/setup.go
@@ -14,7 +14,7 @@ func SetupValidators() {
 		v.RegisterValidation("safe_content", ValidateSafeContent)
 
 		// Register struct-level validations
-		v.RegisterStructValidation(validateUser, models.User{})
+		v.RegisterStructValidation(ValidateUser, models.User{})
 		v.RegisterStructValidation(ValidateSubscription, models.SubscriptionModel{})
 	}
 }