diff --git a/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs b/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs
index 9b423ffc..b24c0e11 100644
--- a/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs
+++ b/dotnet/IEC61850forCSharp/IEC61850ServerAPI.cs
@@ -2166,6 +2166,9 @@ namespace IEC61850
             [DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
             static extern void IedServer_updateFloatAttributeValue(IntPtr self, IntPtr dataAttribute, float value);
 
+            [DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
+            static extern void IedServer_updateBitStringAttributeValue(IntPtr self, IntPtr dataAttribute, uint value);
+
             [DllImport("iec61850", CallingConvention = CallingConvention.Cdecl)]
             static extern void IedServer_updateVisibleStringAttributeValue(IntPtr self, IntPtr dataAttribute, string value);
 
@@ -2811,6 +2814,11 @@ namespace IEC61850
                 IedServer_updateInt64AttributeValue (self, dataAttr.self, value);
             }
 
+            public void UpdateBitStringAttributeValue(DataAttribute dataAttr, uint value)
+            {
+                IedServer_updateBitStringAttributeValue(self, dataAttr.self, value);
+            }
+
             public void UpdateVisibleStringAttributeValue(DataAttribute dataAttr, string value)
             {
                 IedServer_updateVisibleStringAttributeValue(self, dataAttr.self, value);