From 088de88944c1f2254250bb448c7371a87ff7ee39 Mon Sep 17 00:00:00 2001
From: Marius <mariausol@gmail.com>
Date: Fri, 14 Feb 2014 18:20:22 +0200
Subject: beta 2014.02.14 17:07

---
 tex/context/base/util-tab.lua | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'tex/context/base/util-tab.lua')

diff --git a/tex/context/base/util-tab.lua b/tex/context/base/util-tab.lua
index ae44269bb..d235520c4 100644
--- a/tex/context/base/util-tab.lua
+++ b/tex/context/base/util-tab.lua
@@ -316,7 +316,7 @@ function table.fastserialize(t,prefix)
     -- not sorted
     -- only number and string indices (currently)
 
-    local r = { prefix or "return" }
+    local r = { type(prefix) == "string" and prefix or "return" }
     local m = 1
 
     local function fastserialize(t,outer) -- no mixes
@@ -376,7 +376,6 @@ function table.fastserialize(t,prefix)
         end
         return r
     end
-
     return concat(fastserialize(t,true))
 end
 
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