diff --git a/src/Symfony/Component/Debug/Exception/FatalErrorException.php b/src/Symfony/Component/Debug/Exception/FatalErrorException.php
index a9fd7bb9de..fbdad4c567 100644
--- a/src/Symfony/Component/Debug/Exception/FatalErrorException.php
+++ b/src/Symfony/Component/Debug/Exception/FatalErrorException.php
@@ -35,8 +35,7 @@ class FatalErrorException extends \ErrorException
 
             $this->setTrace($trace);
         } elseif (null !== $traceOffset) {
-            if (\function_exists('xdebug_get_function_stack')) {
-                $trace = xdebug_get_function_stack();
+            if (\function_exists('xdebug_get_function_stack') && $trace = @xdebug_get_function_stack()) {
                 if (0 < $traceOffset) {
                     array_splice($trace, -$traceOffset);
                 }
diff --git a/src/Symfony/Component/ErrorHandler/Error/FatalError.php b/src/Symfony/Component/ErrorHandler/Error/FatalError.php
index 98490b5acc..57fc690e26 100644
--- a/src/Symfony/Component/ErrorHandler/Error/FatalError.php
+++ b/src/Symfony/Component/ErrorHandler/Error/FatalError.php
@@ -33,8 +33,7 @@ class FatalError extends \Error
                 }
             }
         } elseif (null !== $traceOffset) {
-            if (\function_exists('xdebug_get_function_stack')) {
-                $trace = xdebug_get_function_stack();
+            if (\function_exists('xdebug_get_function_stack') && $trace = @xdebug_get_function_stack()) {
                 if (0 < $traceOffset) {
                     array_splice($trace, -$traceOffset);
                 }