diff --git a/ext/standard/basic_functions.c b/ext/standard/basic_functions.c
index 358904919a5..d3364c76399 100644
--- a/ext/standard/basic_functions.c
+++ b/ext/standard/basic_functions.c
@@ -4256,7 +4256,7 @@ PHP_FUNCTION(constant)
 	}
 	convert_to_string_ex(const_name);
 
-	if (!zend_get_constant(Z_STRVAL_PP(const_name), Z_STRLEN_PP(const_name), return_value TSRMLS_CC)) {
+	if (!zend_get_constant_ex(Z_STRVAL_PP(const_name), Z_STRLEN_PP(const_name), return_value, NULL, 0 TSRMLS_CC)) {
 		php_error_docref(NULL TSRMLS_CC, E_WARNING, "Couldn't find constant %s", Z_STRVAL_PP(const_name));
 		RETURN_NULL();
 	}