diff --git a/libvo/sub.h b/libvo/sub.h
index e23a571d63..3d36f1bb2d 100644
--- a/libvo/sub.h
+++ b/libvo/sub.h
@@ -103,7 +103,6 @@ extern int sub_pos;
 extern int sub_width_p;
 extern int sub_alignment;
 extern int sub_visibility;
-extern int suboverlap_enabled;
 extern int sub_bg_color; /* subtitles background color */
 extern int sub_bg_alpha;
 extern int spu_alignment;