diff --git a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/ActionList.java b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/ActionList.java
index 2e7ba0c83..0d8a87404 100644
--- a/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/ActionList.java
+++ b/libsrc/ffdec_lib/src/com/jpexs/decompiler/flash/action/ActionList.java
@@ -137,6 +137,12 @@ public class ActionList extends ArrayList<Action> {
                 }
                 return null;
             }
+
+            @Override
+            public void remove()
+            {
+                throw UnsupportedOperationException();
+            }
         };
     }