diff --git a/modules/openapi-generator/src/main/resources/csharp-netcore/modelGeneric.mustache b/modules/openapi-generator/src/main/resources/csharp-netcore/modelGeneric.mustache
index 4d80ca9783c..0791bb57692 100644
--- a/modules/openapi-generator/src/main/resources/csharp-netcore/modelGeneric.mustache
+++ b/modules/openapi-generator/src/main/resources/csharp-netcore/modelGeneric.mustache
@@ -396,7 +396,7 @@
         /// </summary>
         /// <param name="validationContext">Validation context</param>
         /// <returns>Validation Result</returns>
-        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        public IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> Validate(ValidationContext validationContext)
         {
             return this.BaseValidate(validationContext);
         }
@@ -415,7 +415,7 @@
         /// </summary>
         /// <param name="validationContext">Validation context</param>
         /// <returns>Validation Result</returns>
-        IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> IValidatableObject.Validate(ValidationContext validationContext)
+        public IEnumerable<System.ComponentModel.DataAnnotations.ValidationResult> Validate(ValidationContext validationContext)
         {
 {{/discriminator}}
             {{#parent}}