diff --git a/b2-include/b2functions.php b/b2-include/b2functions.php
index 1a005a4cec..9474f9757c 100644
--- a/b2-include/b2functions.php
+++ b/b2-include/b2functions.php
@@ -406,7 +406,7 @@ function user_pass_ok($user_login,$user_pass) {
 	} else {
 		$userdata = $cache_userdata[$user_login];
 	}
-	return ($user_pass == $userdata['user_pass']);
+	return ($user_pass == $userdata->user_pass);
 }
 
 function get_currentuserinfo() { // a bit like get_userdata(), on steroids