diff --git a/src/macro.c b/src/macro.c
index 0c930eea..0ce04855 100644
--- a/src/macro.c
+++ b/src/macro.c
@@ -199,7 +199,7 @@ pic_macroexpand(pic_state *pic, pic_value obj)
 static pic_sym
 new_uniq_sym(pic_state *pic, pic_sym base)
 {
-  int s = pic->uniq_sym_count++;
+  int s = ++pic->uniq_sym_count;
   char *str;
   pic_sym uniq;