diff --git a/edosl0util/eos.py b/edosl0util/eos.py
index 9b2f0196b058cd9e2112c2351b18c68bc0a80220..ded2c753f842c780a579e38f38ad6ef82e5fe552 100644
--- a/edosl0util/eos.py
+++ b/edosl0util/eos.py
@@ -78,7 +78,7 @@ def sort_modis(packets):
 
 
 def collect_modis_scans(packets):
-    scan = None
+    scan = {"scantime": None, "packets": {}}
     scantimes = set()
     for p in packets:
         if p.apid not in (64, 957):