diff --git a/gst-libs/gst/gl/glprototypes/opengl.h b/gst-libs/gst/gl/glprototypes/opengl.h
index e8fbfbb575..ac47d52807 100644
--- a/gst-libs/gst/gl/glprototypes/opengl.h
+++ b/gst-libs/gst/gl/glprototypes/opengl.h
@@ -58,7 +58,7 @@ GST_GL_EXT_FUNCTION (void, DepthRange,
 GST_GL_EXT_FUNCTION (void, DrawBuffer,
                      (GLenum mode))
 GST_GL_EXT_FUNCTION (void, ClearDepth,
-                     (GLclampd depth))
+                     (double depth))
 GST_GL_EXT_END ()
 
 GST_GL_EXT_BEGIN (only_in_big_gl_compat,