diff --git a/ext/intl/php_intl.c b/ext/intl/php_intl.c
index 787cb48fcc556..9584be76cd98b 100644
--- a/ext/intl/php_intl.c
+++ b/ext/intl/php_intl.c
@@ -655,7 +655,7 @@ zend_function_entry intl_functions[] = {
 	PHP_FE( collator_get_locale, collator_1_arg )
 	PHP_FE( collator_get_error_code, collator_0_args )
 	PHP_FE( collator_get_error_message, collator_0_args )
-	PHP_FE( collator_get_sort_key, collator_2_args )
+	PHP_FE( collator_get_sort_key, collator_1_arg )
 
 	/* formatter functions */
 	PHP_FE( numfmt_create, arginfo_numfmt_create )
diff --git a/ext/intl/tests/bug74705.phpt b/ext/intl/tests/bug74705.phpt
index f26dfe5825e86..63a85845a0a72 100644
--- a/ext/intl/tests/bug74705.phpt
+++ b/ext/intl/tests/bug74705.phpt
@@ -2,7 +2,6 @@
 Bug #74705 Wrong reflection on Collator::getSortKey
 --SKIPIF--
 <?php if( !extension_loaded( 'intl' ) ) print 'skip'; ?>
-<?php if (version_compare(INTL_ICU_VERSION, '51.2') >=  0) die('skip for ICU < 51.2'); ?>
 --FILE--
 <?php
 $rm = new ReflectionMethod(Collator::class, 'getSortKey');