diff --git a/src/Symfony/Component/Console/Application.php b/src/Symfony/Component/Console/Application.php
index 32650e5a9e..88162a210e 100644
--- a/src/Symfony/Component/Console/Application.php
+++ b/src/Symfony/Component/Console/Application.php
@@ -1151,7 +1151,7 @@ class Application
         $line = '';
         foreach (preg_split('//u', $utf8String) as $char) {
             // test if $char could be appended to current line
-            if (mb_strwidth($line.$char) <= $width) {
+            if (mb_strwidth($line.$char, 'utf8') <= $width) {
                 $line .= $char;
                 continue;
             }
diff --git a/src/Symfony/Component/Console/Tests/Fixtures/application_renderexception_doublewidth2.txt b/src/Symfony/Component/Console/Tests/Fixtures/application_renderexception_doublewidth2.txt
index 5605f10697..545cd7b0b4 100644
--- a/src/Symfony/Component/Console/Tests/Fixtures/application_renderexception_doublewidth2.txt
+++ b/src/Symfony/Component/Console/Tests/Fixtures/application_renderexception_doublewidth2.txt
@@ -1,11 +1,10 @@
 
 
-                             
-  [Exception]                
-  コマンドの実行中に         
-  エラーが発生しまし         
-  た。                       
-                             
+                              
+  [Exception]                 
+  コマンドの実行中にエラーが  
+  発生しました。              
+                              
 
 
 foo