diff --git a/modules/video_output/vgl.c b/modules/video_output/vgl.c
index 293fed7de8566319f52f595660294c498a793a53..c2c9be3696d9b5e35c1accb8263e455d9967f1a5 100644
--- a/modules/video_output/vgl.c
+++ b/modules/video_output/vgl.c
@@ -137,7 +137,7 @@ static int Open(vlc_gl_t *gl, unsigned width, unsigned height)
             return VLC_EGENERIC;
         }
 
-    (void) width; (void) height;
+    Resize(gl, width, height);
     return VLC_SUCCESS;
 }