diff --git a/items.py b/items.py
index 1d794b3f46ea81e8c9df8e4047fbddda9d5318f9..c2413479e75221a116d9bee403b0994c8a83d374 100755
--- a/items.py
+++ b/items.py
@@ -119,7 +119,8 @@ class Item:
             res['miseEnAction'] = self.miseEnAction.mid
         if self.explication != None:
             res['explication'] = self.explication.mid
-            res['surlignerExplication'] = self.surlignerExplication
+            if self.surlignerExplication:
+                res['surlignerExplication'] = self.surlignerExplication
         if self.transition != None:
             res['transition'] = self.transition.mid
         res['randomiser'] = self.randomiser