diff --git a/lib/vector/Vlib/buffer2.c b/lib/vector/Vlib/buffer2.c
index f380f81af78..e911f611666 100644
--- a/lib/vector/Vlib/buffer2.c
+++ b/lib/vector/Vlib/buffer2.c
@@ -1150,7 +1150,7 @@ void Vect_point_buffer2(double px, double py, double da, double db,
 
     dalpha *= PI / 180; /* convert dalpha from degrees to radians */
 
-    if (round || (!round)) {
+    if (!round) { // square
         angular_tol = angular_tolerance(tol, da, db);
 
         nsegments = (int)(2 * PI / angular_tol) + 1;