diff --git a/modules/member/member.controller.php b/modules/member/member.controller.php
index 24bccd1d4..6383ca4c5 100644
--- a/modules/member/member.controller.php
+++ b/modules/member/member.controller.php
@@ -828,7 +828,7 @@
         function putSignature($member_srl, $signature) {
             $path = sprintf('files/attach/member_extra_info/signature/%s/', getNumberingPath($member_srl));
             $filename = sprintf('%s%d.signature.php', $path, $member_srl);
-            if(!$signature) return @unlink($filename);
+            if(!trim($signature)) return @unlink($filename);
 
             $buff = sprintf('<?php if(!defined("__ZBXE__")) exit();?>%s', $signature);
             FileHandler::makeDir($path);
diff --git a/modules/member/member.model.php b/modules/member/member.model.php
index 6e895681e..d5e09184b 100644
--- a/modules/member/member.model.php
+++ b/modules/member/member.model.php
@@ -491,7 +491,7 @@
             if(!file_exists($filename)) return '';
 
             $buff = FileHandler::readFile($filename);
-            $signature = substr($buff, 40);
+            $signature = trim(substr($buff, 40));
             return $signature;
         }