Index: trunk/src/board.c
===================================================================
--- trunk/src/board.c	(revision 36347)
+++ trunk/src/board.c	(revision 36348)
@@ -287,7 +287,7 @@
 {
 	undo_board_size_t *s = udata;
 
-	if ((s->w != s->pcb->hidlib.size_x) || (s->w != s->pcb->hidlib.size_y)) {
+	if ((s->w != s->pcb->hidlib.size_x) || (s->h != s->pcb->hidlib.size_y)) {
 		rnd_coord_t oldw = s->pcb->hidlib.size_x, oldh = s->pcb->hidlib.size_y;
 		pcb_board_resize_(s->pcb, s->w, s->h);
 		s->w = oldw;