From c3b85c2ffbae27808614df08effa34f1d5df3fdd Mon Sep 17 00:00:00 2001
From: rudolfkoenig <>
Date: Sat, 13 Dec 2014 17:33:03 +0000
Subject: [PATCH] CUL.pm: readanswer fix (Forum #30362)

git-svn-id: https://svn.fhem.de/fhem/trunk@7195 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/00_CUL.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fhem/FHEM/00_CUL.pm b/fhem/FHEM/00_CUL.pm
index 6a9cb8cef..dad66098f 100755
--- a/fhem/FHEM/00_CUL.pm
+++ b/fhem/FHEM/00_CUL.pm
@@ -530,7 +530,7 @@ CUL_ReadAnswer($$$$)
 
     }
 
-    if($buf) {
+    if(defined($buf)) {
       Log3 $ohash->{NAME}, 5, "CUL/RAW (ReadAnswer): $buf";
       $mculdata .= $buf;
     }