diff --git a/cuallee/iso/checks.py b/cuallee/iso/checks.py
index 5a5eff64..f798dd55 100644
--- a/cuallee/iso/checks.py
+++ b/cuallee/iso/checks.py
@@ -36,7 +36,7 @@ def _get_ccy(element):
 @lru_cache
 def _load_countries():
     """External download from Google shared data of country codes and locations"""
-    return list(get_alpha2_codes().values())
+    return list(get_alpha2_codes().keys())
 
 
 class ISO: