diff --git a/src/mesa/glapi/ARB_copy_buffer.xml b/src/mesa/glapi/ARB_copy_buffer.xml
new file mode 100644
index 00000000000..719816d817e
--- /dev/null
+++ b/src/mesa/glapi/ARB_copy_buffer.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0"?>
+<!DOCTYPE OpenGLAPI SYSTEM "gl_API.dtd">
+
+<!-- Note: no GLX protocol info yet. -->
+
+
+<OpenGLAPI>
+
+<category name="GL_ARB_copy_buffer" number="59">
+
+    <enum name="COPY_READ_BUFFER"   value="0x8F36"/>
+    <enum name="COPY_WRITE_BUFFER"  value="0x8F37"/>
+
+    <function name="CopyBufferSubData" offset="assign">
+        <param name="readTarget" type="GLenum"/>
+        <param name="writeTarget" type="GLenum"/>
+        <param name="readOffset" type="GLintptr"/>
+        <param name="writeOffset" type="GLintptr"/>
+        <param name="size" type="GLsizeiptr"/>
+    </function>
+
+</category>
+
+</OpenGLAPI>