diff --git a/src/main/java/org/ntlab/acanthus_server/entities/Animation.java b/src/main/java/org/ntlab/acanthus_server/entities/Animation.java
index 7985270..ba0253e 100644
--- a/src/main/java/org/ntlab/acanthus_server/entities/Animation.java
+++ b/src/main/java/org/ntlab/acanthus_server/entities/Animation.java
@@ -137,7 +137,7 @@
         return owner;
     }
 
-    public Collection<Editor> getEditors() {
+    public ArrayList<Editor> getEditors() {
         return editors;
     }