diff --git a/frontools/config.py b/frontools/config.py
index 322214f..7e36aa0 100644
--- a/frontools/config.py
+++ b/frontools/config.py
@@ -122,10 +122,10 @@ class Config:
         for pattern in patterns:
             self._block_urls.append(re_compile(pattern))
 
-    def override(
+    def add_override_source(
         self,
         source_name: str,
-        mappings: list[tuple[str, str]],
+        *mappings: list[tuple[str, str]],
         next_source_name: Optional[str] = None,
     ) -> None:
         """Add a source overriding given patterns"""