diff --git a/src/titiler/core/titiler/core/algorithm/__init__.py b/src/titiler/core/titiler/core/algorithm/__init__.py
index 67c5a022a..5b80b6e5f 100644
--- a/src/titiler/core/titiler/core/algorithm/__init__.py
+++ b/src/titiler/core/titiler/core/algorithm/__init__.py
@@ -57,7 +57,7 @@ def get(self, name: str) -> BaseAlgorithm:
 
     def list(self) -> List[str]:
         """List registered Algorithm."""
-        return list(self.data.keys())
+        return list(self.data)
 
     def register(
         self,