diff --git a/mastodon_blocklist_deploy/cli.py b/mastodon_blocklist_deploy/cli.py
index c0e9053..07ad346 100644
--- a/mastodon_blocklist_deploy/cli.py
+++ b/mastodon_blocklist_deploy/cli.py
@@ -76,7 +76,7 @@ def merge(input_file, merge_target, format: str = "toml", private: bool = False,
             continue
         # Check if there is a domain in the merge target where the input domain is similar
         try:
-            merge_target_instance = [merge_target_instance for merge_target_instance in merge_target if input_instance.domain == merge_target_instance.domain][0]
+            merge_target_instance = [merge_target_instance for merge_target_instance in merge_target_blocklist if input_instance.domain == merge_target_instance.domain][0]
             if not overwrite:
                 key_input = ""
                 while key_input not in ("i", "O"):