Index: obj_pstk_proto.c
===================================================================
--- obj_pstk_proto.c	(revision 32537)
+++ obj_pstk_proto.c	(revision 32538)
@@ -625,14 +625,14 @@
 
 RND_INLINE pcb_pstk_shape_smirror_(pcb_pstk_shape_t *sh)
 {
-		if (sh->layer_mask & PCB_LYT_TOP) {
-			sh->layer_mask &= ~PCB_LYT_TOP;
-			sh->layer_mask |= PCB_LYT_BOTTOM;
-		}
-		else if (sh->layer_mask & PCB_LYT_BOTTOM) {
-			sh->layer_mask &= ~PCB_LYT_BOTTOM;
-			sh->layer_mask |= PCB_LYT_TOP;
-		}
+	if (sh->layer_mask & PCB_LYT_TOP) {
+		sh->layer_mask &= ~PCB_LYT_TOP;
+		sh->layer_mask |= PCB_LYT_BOTTOM;
+	}
+	else if (sh->layer_mask & PCB_LYT_BOTTOM) {
+		sh->layer_mask &= ~PCB_LYT_BOTTOM;
+		sh->layer_mask |= PCB_LYT_TOP;
+	}
 }
 
 void pcb_pstk_shape_smirror(pcb_pstk_shape_t *sh)