diff --git a/commands/tinfoil.py b/commands/tinfoil.py
index 982e10b..769f83b 100755
--- a/commands/tinfoil.py
+++ b/commands/tinfoil.py
@@ -118,7 +118,11 @@ for base in bases:
         remove("nsz/base", base)
 
         fullid = get_title_fullid(base)
-        shortid = fullid[0:-4] if fullid else fullid
+
+        if not fullid:
+            continue
+
+        shortid = fullid[0:-4]
 
         for dlc in dlcs:
             if shortid in dlc: