diff --git a/src/blocking.py b/src/blocking.py
index 5f5369e19..e04af09ff 100644
--- a/src/blocking.py
+++ b/src/blocking.py
@@ -1982,7 +1982,7 @@ def get_bsky_domains_list() -> []:
 def get_nostr_domains_list() -> []:
     """returns a list of nostr bridges
     """
-    return ['mostr.pub', 'momostr.pink']
+    return ('mostr.pub', 'momostr.pink')
 
 
 def contains_military_domain(message_str: str) -> bool: