diff --git a/Zend/zend_interfaces.c b/Zend/zend_interfaces.c
index 674d458a41a..66f43f9fc05 100755
--- a/Zend/zend_interfaces.c
+++ b/Zend/zend_interfaces.c
@@ -118,7 +118,7 @@ ZEND_API zval *zend_user_it_new_iterator(zend_class_entry *ce, zval *object TSRM
 /* }}} */
 
 /* {{{ zend_user_it_dtor */
-static void zend_user_it_invalidate_current(zend_object_iterator *_iter TSRMLS_DC)
+ZEND_API void zend_user_it_invalidate_current(zend_object_iterator *_iter TSRMLS_DC)
 {
 	zend_user_iterator *iter = (zend_user_iterator*)_iter;
 
diff --git a/Zend/zend_interfaces.h b/Zend/zend_interfaces.h
index e1d7a5d8287..d7674b924b3 100755
--- a/Zend/zend_interfaces.h
+++ b/Zend/zend_interfaces.h
@@ -54,6 +54,7 @@ ZEND_API int zend_user_it_valid(zend_object_iterator *_iter TSRMLS_DC);
 ZEND_API int zend_user_it_get_current_key(zend_object_iterator *_iter, char **str_key, uint *str_key_len, ulong *int_key TSRMLS_DC);
 ZEND_API void zend_user_it_get_current_data(zend_object_iterator *_iter, zval ***data TSRMLS_DC);
 ZEND_API void zend_user_it_move_forward(zend_object_iterator *_iter TSRMLS_DC);
+ZEND_API void zend_user_it_invalidate_current(zend_object_iterator *_iter TSRMLS_DC);
 
 ZEND_API zval *zend_user_it_new_iterator(zend_class_entry *ce, zval *object TSRMLS_DC);
 ZEND_API zend_object_iterator *zend_user_it_get_new_iterator(zend_class_entry *ce, zval *object, int by_ref TSRMLS_DC);