From 00295366b55bbf9001c8d8540ff541daa8a0fa8c Mon Sep 17 00:00:00 2001
From: Andreas Rumpf <rumpf_a@web.de>
Date: Fri, 19 Jan 2018 16:32:48 +0100
Subject: [PATCH] fixes size computations for 'dumpNumberOfInstances'

---
 lib/system/gc_common.nim | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/system/gc_common.nim b/lib/system/gc_common.nim
index d33e271cee..234b2c18a8 100644
--- a/lib/system/gc_common.nim
+++ b/lib/system/gc_common.nim
@@ -67,7 +67,7 @@ template decTypeSize(cell, t) =
       let size = addInt(mulInt(len, base), GenericSeqSize)
       dec t.sizes, size+sizeof(Cell)
     else:
-      dec t.sizes, t.size+sizeof(Cell)
+      dec t.sizes, t.base.size+sizeof(Cell)
     dec t.instances
 
 template incTypeSize(typ, size) =