index 6a622f1..a14b96f 100644
--- a/fig2dev/dev/genibmgl.c
+++ b/fig2dev/dev/genibmgl.c
@@ -572,7 +572,7 @@ static set_width(w)
 {
     static int current_width=-1;
 
-    if (w == current_width) return;
+    if (w == current_width) return 0;
 
     /* Default line width is 0.3 mm; back off to original xfig pen
        thickness number, and re-size.