diff --git a/layout/reftests/bugs/401496.xul b/layout/reftests/bugs/401946-1.xul
similarity index 100%
rename from layout/reftests/bugs/401496.xul
rename to layout/reftests/bugs/401946-1.xul
diff --git a/layout/reftests/bugs/reftest.list b/layout/reftests/bugs/reftest.list
index 537c5edee27e..fc3b9b6a9054 100644
--- a/layout/reftests/bugs/reftest.list
+++ b/layout/reftests/bugs/reftest.list
@@ -453,7 +453,7 @@ fails == 386310-1d.html 386310-1-ref.html
 == 400171-2c.html 400171-2-ref.html
 == 400421-1.html 400421-1-ref.html
 == 400826-1.html 400826-1-ref.html
-#== 401496.xul about:blank
+== 401946-1.xul about:blank
 == 402338-1.html 402338-1-ref.html
 == 402950-1.html 402950-1-ref.html
 == 403129-1.html 403129-1-ref.html