diff --git a/lif.schema b/lif.schema
index 6a78d64..5899fb8 100644
--- a/lif.schema
+++ b/lif.schema
@@ -98,6 +98,10 @@ definitions {
 				minimum(-1) 
 			}
 			end { type integer; minimum(-1) }
+            targets { 
+                type array
+                items { type string }
+            }
 			features { $ref '#/definitions/map' }
 			metadata { $ref '#/definitions/map' }
 		}