diff --git a/objects.js b/objects.js
index 91febf23..ea07e6e0 100644
--- a/objects.js
+++ b/objects.js
@@ -4868,6 +4868,12 @@ StageMorph.prototype.deleteVariable = SpriteMorph.prototype.deleteVariable;
 StageMorph.prototype.doScreenshot
     = SpriteMorph.prototype.doScreenshot;
 
+StageMorph.prototype.newCostumeNameCached
+    = SpriteMorph.prototype.newCostumeNameCached;
+
+StageMorph.prototype.newCostumeNameFn
+    = SpriteMorph.prototype.newCostumeNameFn;
+
 StageMorph.prototype.blockForSelector
     = SpriteMorph.prototype.blockForSelector;