diff --git a/bin/compile b/bin/compile
index a2720a95d..f9156245f 100755
--- a/bin/compile
+++ b/bin/compile
@@ -20,7 +20,7 @@ require __DIR__.'/../src/bootstrap.php';
 use Composer\Compiler;
 
 error_reporting(-1);
-ini_set('display_errors', 1);
+ini_set('display_errors', '1');
 
 try {
     $compiler = new Compiler();
diff --git a/bin/composer b/bin/composer
index 8b1184448..cadff6d0d 100755
--- a/bin/composer
+++ b/bin/composer
@@ -24,7 +24,7 @@ if (defined('HHVM_VERSION') && version_compare(HHVM_VERSION, '4.0', '>=')) {
 }
 
 if (function_exists('ini_set')) {
-    @ini_set('display_errors', 1);
+    @ini_set('display_errors', '1');
 
     // Set user defined memory limit
     if ($memoryLimit = getenv('COMPOSER_MEMORY_LIMIT')) {