diff --git a/src/dishka/dependency_source/make_alias.py b/src/dishka/dependency_source/make_alias.py
index 68315b0f..053d5766 100644
--- a/src/dishka/dependency_source/make_alias.py
+++ b/src/dishka/dependency_source/make_alias.py
@@ -8,8 +8,8 @@
 
 
 def alias(
-        *,
         source: Any,
+        *,
         provides: Any | None = None,
         cache: bool = True,
         component: Component | None = None,
diff --git a/src/dishka/provider.py b/src/dishka/provider.py
index 2b9618f3..d9db3979 100644
--- a/src/dishka/provider.py
+++ b/src/dishka/provider.py
@@ -171,8 +171,8 @@ def provide_all(
 
     def alias(
             self,
-            *,
             source: type,
+            *,
             provides: Any = None,
             cache: bool = True,
             component: Component | None = None,
@@ -203,9 +203,15 @@ def to_component(self, component: Component) -> ProviderWrapper:
         return ProviderWrapper(component, self)
 
     def from_context(
-            self, *, provides: Any, scope: BaseScope,
+            self,
+            provides: Any,
+            *,
+            scope: BaseScope | None = None,
     ) -> CompositeDependencySource:
-        composite = from_context(provides, scope=scope)
+        composite = from_context(
+            provides=provides,
+            scope=scope or self.scope,
+        )
         self._add_dependency_sources(
             name=str(provides),
             sources=composite.dependency_sources,