diff --git a/language/generators.xml b/language/generators.xml
index e1a97fc804..8d8a36913e 100644
--- a/language/generators.xml
+++ b/language/generators.xml
@@ -420,6 +420,10 @@ class Generator implements Iterator {
                                        // the yield expression and
                                        // resumes execution of the
                                        // generator.
+    
+    public function throw(Exception $ex);
+                                       // Throws an exception into the 
+                                       // generator.
 }
 ?>
 ]]>