diff --git a/src/renderer_gl.cpp b/src/renderer_gl.cpp
index 5ad896a3d..bfc86d6d9 100644
--- a/src/renderer_gl.cpp
+++ b/src/renderer_gl.cpp
@@ -935,6 +935,7 @@ namespace bgfx { namespace gl
 	{
 		"gl_VertexID",
 		"gl_InstanceID",
+		"uint",
 		NULL
 	};