diff --git a/setup-scripts/blocklist-airtable.py b/setup-scripts/blocklist-airtable.py
index d0279e5f..43858483 100755
--- a/setup-scripts/blocklist-airtable.py
+++ b/setup-scripts/blocklist-airtable.py
@@ -21,8 +21,8 @@ AIRTABLE_TABLE = os.getenv("AIRTABLE_TABLE")
 AIRTABLE_FIELD = os.getenv("AIRTABLE_FIELD")
 
 # Check environment variables are defined
-for e in [AIRTABLE_API_KEY, AIRTABLE_BASE, AIRTABLE_TABLE, AIRTABLE_FIELD]
-    if not e:
+for value in [AIRTABLE_API_KEY, AIRTABLE_BASE, AIRTABLE_TABLE, AIRTABLE_FIELD]
+    if not value:
         sys.exit("Configuration error: Missing AirTable environment variable.")