diff --git a/src/Symfony/Component/Debug/DebugClassLoader.php b/src/Symfony/Component/Debug/DebugClassLoader.php
index 54df7de0cfc9..310f7d4e2247 100644
--- a/src/Symfony/Component/Debug/DebugClassLoader.php
+++ b/src/Symfony/Component/Debug/DebugClassLoader.php
@@ -390,6 +390,11 @@ private function darwinRealpath($real)
 
         $dirFiles = self::$darwinCache[$kDir][1];
 
+        if (!isset($dirFiles[$file]) && ') : eval()\'d code' === substr($file, -17)) {
+            // Get the file name from "file_name.php(123) : eval()'d code"
+            $file = substr($file, 0, strrpos($file, '(', -17));
+        }
+
         if (isset($dirFiles[$file])) {
             return $real .= $dirFiles[$file];
         }
diff --git a/src/Symfony/Component/Debug/Tests/DebugClassLoaderTest.php b/src/Symfony/Component/Debug/Tests/DebugClassLoaderTest.php
index 22db620f1c6f..c6bc3f7d88b5 100644
--- a/src/Symfony/Component/Debug/Tests/DebugClassLoaderTest.php
+++ b/src/Symfony/Component/Debug/Tests/DebugClassLoaderTest.php
@@ -385,6 +385,11 @@ class_exists('Test\\'.__NAMESPACE__.'\\UseTraitWithInternalMethod', true);
 
         $this->assertSame([], $deprecations);
     }
+
+    public function testEvaluatedCode()
+    {
+        $this->assertTrue(class_exists(__NAMESPACE__.'\Fixtures\DefinitionInEvaluatedCode', true));
+    }
 }
 
 class ClassLoader
diff --git a/src/Symfony/Component/Debug/Tests/Fixtures/DefinitionInEvaluatedCode.php b/src/Symfony/Component/Debug/Tests/Fixtures/DefinitionInEvaluatedCode.php
new file mode 100644
index 000000000000..ff6976e0fb1d
--- /dev/null
+++ b/src/Symfony/Component/Debug/Tests/Fixtures/DefinitionInEvaluatedCode.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Symfony\Component\Debug\Tests\Fixtures;
+
+eval('
+    namespace Symfony\Component\Debug\Tests\Fixtures;
+
+    class DefinitionInEvaluatedCode
+    {
+    }
+');