diff --git a/strix/interface/main.py b/strix/interface/main.py
index ebfe98f7..1334a453 100644
--- a/strix/interface/main.py
+++ b/strix/interface/main.py
@@ -333,12 +333,6 @@ def _parse_credentials(
             )
             return result  # unreachable
         str_values: dict[str, str] = {}
-        for k, v in loaded.items():
-            if not isinstance(v, str):
-                parser.error(
-                    f"Credentials file values must be strings, "
-                    f"got {type(v).__name__} for key '{k}': '{credentials_file}'"
-        str_values: dict[str, str] = {}
         for k, v in loaded.items():
             if not isinstance(v, str):
                 parser.error(