diff --git a/source/Cosmos.System.Plugs/System/DecimalImpl.cs b/source/Cosmos.System.Plugs/System/DecimalImpl.cs
new file mode 100644
index 0000000000..34c76a70f1
--- /dev/null
+++ b/source/Cosmos.System.Plugs/System/DecimalImpl.cs
@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+using System;
+
+using Cosmos.IL2CPU.Plugs;
+
+namespace Cosmos.System.Plugs.System
+{
+    [Plug(Target = typeof(decimal))]
+    public static class DecimalImpl
+    {
+        public static int GetHashCode(ref decimal aThis)
+        {
+            throw new NotImplementedException("Decimal.GetHashCode()");
+        }
+    }
+}