diff --git a/gst-libs/gst/gl/gstglutils.h b/gst-libs/gst/gl/gstglutils.h
index 1e87c0dec2..0357b75e45 100644
--- a/gst-libs/gst/gl/gstglutils.h
+++ b/gst-libs/gst/gl/gstglutils.h
@@ -28,18 +28,6 @@
 
 G_BEGIN_DECLS
 
-/**
- * GstGLContextProjection:
- *
- * %GST_GL_DISPLAY_PROJECTION_ORTHO2D: Orthogonal projection
- * %GST_GL_DISPLAY_CONVERSION_MATRIX: Perspective projection 
- */
-typedef enum
-{
-  GST_GL_DISPLAY_PROJECTION_ORTHO2D,
-  GST_GL_DISPLAY_PROJECTION_PERSPECTIVE
-} GstGLDisplayProjection;
-
 /**
  * CDCB:
  * @texture: texture to draw