diff --git a/Foundation/CPArray.j b/Foundation/CPArray.j
index 949b900ac..14e387f3f 100755
--- a/Foundation/CPArray.j
+++ b/Foundation/CPArray.j
@@ -215,7 +215,7 @@
                 self[index] = [anArray[index] copy];
             // Do a deep/shallow copy?
             else
-                self[index] = anArray;
+                self[index] = anArray[index];
         }
     }