diff --git a/core/jsfl/libraries/flash/Iterators.jsfl b/core/jsfl/libraries/flash/Iterators.jsfl
index 1dc379db..a1a12cd4 100644
--- a/core/jsfl/libraries/flash/Iterators.jsfl
+++ b/core/jsfl/libraries/flash/Iterators.jsfl
@@ -140,7 +140,7 @@
 						//trace('Item:' + i);
 
 					// skip if item doens't have a timeline
-						if( ! items[i]['timeline'] )
+						if( !('timeline' in items[i]) )
 							continue
 
 					// context