diff --git a/src/Generator/ClassGenerator.php b/src/Generator/ClassGenerator.php
index 2d382ebf..843313c6 100644
--- a/src/Generator/ClassGenerator.php
+++ b/src/Generator/ClassGenerator.php
@@ -1018,6 +1018,7 @@ private function validateConstantValue($value)
      */
     private function generateShortOrCompleteClassname($fqnClassName)
     {
+        $fqnClassName = ltrim($fqnClassName, '\\');
         $parts = explode('\\', $fqnClassName);
         $className = array_pop($parts);
         $classNamespace = implode('\\', $parts);
diff --git a/test/Generator/ClassGeneratorTest.php b/test/Generator/ClassGeneratorTest.php
index 039e5cd6..c2c63cd0 100644
--- a/test/Generator/ClassGeneratorTest.php
+++ b/test/Generator/ClassGeneratorTest.php
@@ -1107,6 +1107,23 @@ public function testCorrectExtendNames()
         $this->assertContains('class ClassName extends DateTime', $classGenerator->generate());
     }
 
+    /**
+     * @group 75
+     */
+    public function testCorrectExtendNamesFromGlobalNamespace()
+    {
+        $classGenerator = new ClassGenerator();
+        $classGenerator->setName('ClassName');
+        $classGenerator->setNamespaceName('SomeNamespace');
+        $classGenerator->setExtendedClass('\DateTime');
+        $this->assertContains('class ClassName extends \DateTime', $classGenerator->generate());
+
+        $classGenerator = new ClassGenerator();
+        $classGenerator->setName('ClassName');
+        $classGenerator->setExtendedClass('\DateTime');
+        $this->assertContains('class ClassName extends DateTime', $classGenerator->generate());
+    }
+
     public function testCorrectImplementNames()
     {
         $classGenerator = new ClassGenerator();