diff --git a/Source/Bind/Specifications/csharp.tm b/Source/Bind/Specifications/csharp.tm
index 500a2d7c..3708fc17 100644
--- a/Source/Bind/Specifications/csharp.tm
+++ b/Source/Bind/Specifications/csharp.tm
@@ -3,6 +3,7 @@ GLsizei,            Int32
 GLsizeiptr,         IntPtr
 GLintptr,           IntPtr
 # GLenum,             Int32
+GLenum,             All
 GLboolean,          bool		# Boolean # Int32
 GLbitfield,         UInt32
 # GLvoid*,            IntPtr