diff --git a/src/Generator/Generators/CSharp/CSharpTextTemplate.cs b/src/Generator/Generators/CSharp/CSharpTextTemplate.cs
index 36c4a5f5..3d55c8ce 100644
--- a/src/Generator/Generators/CSharp/CSharpTextTemplate.cs
+++ b/src/Generator/Generators/CSharp/CSharpTextTemplate.cs
@@ -1159,6 +1159,9 @@ namespace CppSharp.Generators.CSharp
             if (method.IsOperator)
                 GetOperatorIdentifier(method.OperatorKind, out isBuiltinOperator);
 
+            if (method.IsVirtual && !method.IsOverride)
+                Write("virtual ");
+
             if (method.IsStatic || (method.IsOperator && isBuiltinOperator))
                 Write("static ");