diff --git a/src/Symfony/Component/Console/Application.php b/src/Symfony/Component/Console/Application.php
index da5c98756e..bc3f23b5e4 100644
--- a/src/Symfony/Component/Console/Application.php
+++ b/src/Symfony/Component/Console/Application.php
@@ -114,8 +114,10 @@ class Application implements ResetInterface
      */
     public function run(InputInterface $input = null, OutputInterface $output = null)
     {
-        putenv('LINES='.$this->terminal->getHeight());
-        putenv('COLUMNS='.$this->terminal->getWidth());
+        if (\function_exists('putenv')) {
+            @putenv('LINES='.$this->terminal->getHeight());
+            @putenv('COLUMNS='.$this->terminal->getWidth());
+        }
 
         if (null === $input) {
             $input = new ArgvInput();
@@ -980,7 +982,9 @@ class Application implements ResetInterface
             $input->setInteractive(false);
         }
 
-        putenv('SHELL_VERBOSITY='.$shellVerbosity);
+        if (\function_exists('putenv')) {
+            @putenv('SHELL_VERBOSITY='.$shellVerbosity);
+        }
         $_ENV['SHELL_VERBOSITY'] = $shellVerbosity;
         $_SERVER['SHELL_VERBOSITY'] = $shellVerbosity;
     }