diff --git a/lib/ntbb-ladder.lib.php b/lib/ntbb-ladder.lib.php
index 20e11c51f..bf63dfea5 100755
--- a/lib/ntbb-ladder.lib.php
+++ b/lib/ntbb-ladder.lib.php
@@ -326,7 +326,7 @@ class NTBBLadder {
 
 				$rating->Update();
 				if ($offset) {
-					$rating->r += $offset;
+					$rating->rating += $offset;
 					$rating->mu += $offset/173.7178;
 					$offset = 0;
 				}