diff --git a/lnbits/core/extensions/__init__.py b/lnbits/core/extensions/__init__.py
index ea6ccf646..4d9205dd1 100644
--- a/lnbits/core/extensions/__init__.py
+++ b/lnbits/core/extensions/__init__.py
@@ -24,7 +24,7 @@ __all__ = [
     "extension_api_method",
     "get_extension_api_method",
     "invoke_wasm_extension_export",
-    "load_wasm_extension",
     "list_extension_api_methods",
+    "load_wasm_extension",
     "register_wasm_extension",
 ]
diff --git a/lnbits/core/extensions/api.py b/lnbits/core/extensions/api.py
index 86c48dec5..6a0dae90b 100644
--- a/lnbits/core/extensions/api.py
+++ b/lnbits/core/extensions/api.py
@@ -93,9 +93,7 @@ def extension_api_method(
         function: Callable[[ExtensionAPI, _RequestModel], Awaitable[_ResponseModel]],
     ) -> Callable[[ExtensionAPI, _RequestModel], Awaitable[_ResponseModel]]:
         @wraps(function)
-        async def wrapper(
-            self: ExtensionAPI, request: _RequestModel
-        ) -> _ResponseModel:
+        async def wrapper(self: ExtensionAPI, request: _RequestModel) -> _ResponseModel:
             self.require_permission(required_permission)
             return await function(self, request)
 
diff --git a/lnbits/core/extensions/loader.py b/lnbits/core/extensions/loader.py
index bbff64e97..e94d44b20 100644
--- a/lnbits/core/extensions/loader.py
+++ b/lnbits/core/extensions/loader.py
@@ -207,9 +207,7 @@ def _wasm_extension_api_export(extension: WasmExtension, export_name: Any) -> st
             continue
         if export.get("visibility") in {"public", "authenticated"}:
             return export_name
-        raise PermissionError(
-            f"WASM export '{export_name}' is not callable over HTTP."
-        )
+        raise PermissionError(f"WASM export '{export_name}' is not callable over HTTP.")
     raise KeyError(f"WASM extension '{extension.id}' has no export '{export_name}'.")
 
 
@@ -301,7 +299,9 @@ def _wasm_extension_route_path(extension: WasmExtension, path: Any) -> str:
 
 def _wasm_extension_entrypoint(extension: WasmExtension, entrypoint: Any) -> Path:
     if not isinstance(entrypoint, str) or not entrypoint.startswith("/"):
-        raise ValueError(f"Invalid route entrypoint for WASM extension '{extension.id}'.")
+        raise ValueError(
+            f"Invalid route entrypoint for WASM extension '{extension.id}'."
+        )
 
     static_prefix = f"/{extension.id}/static/"
     if not entrypoint.startswith(static_prefix):
@@ -310,7 +310,7 @@ def _wasm_extension_entrypoint(extension: WasmExtension, entrypoint: Any) -> Pat
             f"'{static_prefix}'."
         )
 
-    path = (extension.root_path / "static" / entrypoint.removeprefix(static_prefix))
+    path = extension.root_path / "static" / entrypoint.removeprefix(static_prefix)
     path = path.resolve()
     if extension.root_path.resolve() not in path.parents:
         raise ValueError(f"Route entrypoint escapes extension root: {entrypoint}")
diff --git a/lnbits/core/extensions/wasm.py b/lnbits/core/extensions/wasm.py
index 0dd8ad688..d530fb11f 100644
--- a/lnbits/core/extensions/wasm.py
+++ b/lnbits/core/extensions/wasm.py
@@ -65,7 +65,9 @@ def _invoke_wasm_extension_export_sync(
     instance = linker.instantiate(store, wasm_component)
     function = instance.get_func(store, export_name)
     if not function:
-        raise KeyError(f"WASM extension '{extension.id}' has no export '{export_name}'.")
+        raise KeyError(
+            f"WASM extension '{extension.id}' has no export '{export_name}'."
+        )
 
     result = function(store, json.dumps(payload))
     function.post_return(store)