1 files changed, 1 insertions, 1 deletions

diff --git a/moses.lua b/moses.lua
index da2f11a..083c4c2 100644
--- a/moses.lua
+++ b/moses.lua
@@ -1204,8 +1204,8 @@ function M.chunk(array, f)
   local ch, ck, prev, val = {}, 0
   for k,v in ipairs(array) do
     val = f(v, k)
-    prev = (prev==nil) and val or prev
     ck = ((val~=prev) and (ck+1) or ck)
+    prev = (prev==nil) and val or prev
     if not ch[ck] then
       ch[ck] = {array[k]}
     else