diff --git a/approvaltests/asserts.py b/approvaltests/asserts.py
index f0d5dc21..e90c43ca 100644
--- a/approvaltests/asserts.py
+++ b/approvaltests/asserts.py
@@ -21,7 +21,7 @@ def __init__(self, file_path: str, extension: None = None) -> None:
         self.file_path = file_path
 
     @override
-    def get_approved_filename(self, base: str | None = None) -> str:
+    def get_approved_filename(self) -> str:
         return self.file_path
 
 
diff --git a/approvaltests/core/namer.py b/approvaltests/core/namer.py
index 0988844d..017125d0 100644
--- a/approvaltests/core/namer.py
+++ b/approvaltests/core/namer.py
@@ -8,9 +8,9 @@ class Namer(ABC):
     RECEIVED = "." + RECEIVED_WITHOUT_DOT
 
     @abstractmethod
-    def get_received_filename(self, base: str | None = None) -> str:
+    def get_received_filename(self) -> str:
         pass
 
     @abstractmethod
-    def get_approved_filename(self, base: str | None = None) -> str:
+    def get_approved_filename(self) -> str:
         pass
diff --git a/approvaltests/core/scenario_namer.py b/approvaltests/core/scenario_namer.py
index 97a9f060..04eb153b 100644
--- a/approvaltests/core/scenario_namer.py
+++ b/approvaltests/core/scenario_namer.py
@@ -23,14 +23,12 @@ def get_basename(self) -> str:
         return f"{basename}.{scenarios}"
 
     @override
-    def get_approved_filename(self, base: str | None = None) -> str:
-        base = base or self.get_basename()
-        return self.base_namer.get_approved_filename(base)
+    def get_approved_filename(self) -> str:
+        return self.get_basename() + Namer.APPROVED + self.base_namer.extension_with_dot
 
     @override
-    def get_received_filename(self, base: str | None = None) -> str:
-        base = base or self.get_basename()
-        return self.base_namer.get_received_filename(base)
+    def get_received_filename(self) -> str:
+        return self.get_basename() + Namer.RECEIVED + self.base_namer.extension_with_dot
 
     def set_extension(self, extension: str) -> None:
         self.base_namer.set_extension(extension)
diff --git a/approvaltests/namer/cli_namer.py b/approvaltests/namer/cli_namer.py
index 15c5f879..d3ab89c7 100644
--- a/approvaltests/namer/cli_namer.py
+++ b/approvaltests/namer/cli_namer.py
@@ -8,11 +8,11 @@ def __init__(self, test_id: str) -> None:
         self.test_id = test_id
 
     @override
-    def get_received_filename(self, base: str | None = None) -> str:
+    def get_received_filename(self) -> str:
         return f"{self.test_id}.received.txt"
 
     @override
-    def get_approved_filename(self, base: str | None = None) -> str:
+    def get_approved_filename(self) -> str:
         return f"{self.test_id}.approved.txt"
 
     def get_basename(self) -> str:
diff --git a/approvaltests/namer/inline_comparator.py b/approvaltests/namer/inline_comparator.py
index 97f804d0..f25c1483 100644
--- a/approvaltests/namer/inline_comparator.py
+++ b/approvaltests/namer/inline_comparator.py
@@ -16,14 +16,14 @@
 
 class InlineComparator(Namer):
     @override
-    def get_approved_filename(self, base: str | None = None) -> str:
+    def get_approved_filename(self) -> str:
         file = tempfile.NamedTemporaryFile(suffix=".approved.txt", delete=False).name
         docs = self.get_test_method_doc_string()
         Path(file).write_text(docs, encoding="utf-8")
         return file
 
     @override
-    def get_received_filename(self, base: str | None = None) -> str:
+    def get_received_filename(self) -> str:
         return tempfile.NamedTemporaryFile(suffix=".received.txt", delete=False).name
 
     @staticmethod
diff --git a/approvaltests/namer/namer_base.py b/approvaltests/namer/namer_base.py
index a2b73187..d3fbff29 100644
--- a/approvaltests/namer/namer_base.py
+++ b/approvaltests/namer/namer_base.py
@@ -45,13 +45,13 @@ def get_basename(self) -> str:
         return str(os.path.join(self.get_directory(), subdirectory, file_name))
 
     @override
-    def get_received_filename(self, base: str | None = None) -> str:
-        base = base or self.get_basename()
+    def get_received_filename(self) -> str:
+        base = self.get_basename()
         return base + Namer.RECEIVED + self.extension_with_dot
 
     @override
-    def get_approved_filename(self, base: str | None = None) -> str:
-        base = base or self.get_basename()
+    def get_approved_filename(self) -> str:
+        base = self.get_basename()
         return base + Namer.APPROVED + self.extension_with_dot
 
     def set_extension(self, extension: str) -> None:
diff --git a/approvaltests/namer/templated_custom_namer.py b/approvaltests/namer/templated_custom_namer.py
index 1c4f3a5c..635bf1f0 100644
--- a/approvaltests/namer/templated_custom_namer.py
+++ b/approvaltests/namer/templated_custom_namer.py
@@ -24,11 +24,11 @@ def set_extension(self, extension_with_dot: str) -> None:
         self.namer_parts.set_extension(extension_with_dot)
 
     @override
-    def get_received_filename(self, base: str | None = None) -> str:
+    def get_received_filename(self) -> str:
         return self.format_filename(self.RECEIVED_WITHOUT_DOT)
 
     @override
-    def get_approved_filename(self, base: str | None = None) -> str:
+    def get_approved_filename(self) -> str:
         return self.format_filename(self.APPROVED_WITHOUT_DOT)
 
     def format_filename(self, approved_or_received: str) -> str:
diff --git a/docs/explanation/namer_architecture.md b/docs/explanation/namer_architecture.md
index 418d8dc9..064e284a 100644
--- a/docs/explanation/namer_architecture.md
+++ b/docs/explanation/namer_architecture.md
@@ -1,8 +1,8 @@
   ```mermaid
 classDiagram
     class Namer {
-        +get_received_filename(base: Optional[str]): str
-        +get_approved_filename(base: Optional[str]): str
+        +get_received_filename(): str
+        +get_approved_filename(): str
     }
 
     class NamerBase {
@@ -15,8 +15,8 @@ classDiagram
         +config_directory(): str
         +get_config(): Dict
         +get_basename(): str
-        +get_received_filename(base: Optional[str]): str
-        +get_approved_filename(base: Optional[str]): str
+        +get_received_filename(): str
+        +get_approved_filename(): str
         +set_extension(extension: str): None
     }
     Namer <|-- NamerBase
@@ -44,8 +44,8 @@ classDiagram
         -namer_parts: StackFrameNamer
         +__init__(template: str): None
         +set_extension(extension_with_dot: str): None
-        +get_received_filename(base: Optional[str]): str
-        +get_approved_filename(base: Optional[str]): str
+        +get_received_filename(): str
+        +get_approved_filename(): str
         +format_filename(approved_or_received: str): str
     }
     Namer <|-- TemplatedCustomNamer
diff --git a/tests/approved_files/test_scenarios.test_manual_scenarios.approved.txt b/tests/approved_files/test_scenarios.test_manual_scenarios.approved.txt
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/approved_files/test_scenarios.test_manual_scenarios_with_blocking.approved.txt b/tests/approved_files/test_scenarios.test_manual_scenarios_with_blocking.approved.txt
new file mode 100644
index 00000000..2e65efe2
--- /dev/null
+++ b/tests/approved_files/test_scenarios.test_manual_scenarios_with_blocking.approved.txt
@@ -0,0 +1 @@
+a
\ No newline at end of file
diff --git a/tests/approved_files/test_scenarios.test_scenarios.approved.txt b/tests/approved_files/test_scenarios.test_scenarios.approved.txt
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/approved_files/test_scenarios.test_scenarios_old.approved.txt b/tests/approved_files/test_scenarios.test_scenarios_old.approved.txt
new file mode 100644
index 00000000..e69de29b
diff --git a/tests/test_namer.py b/tests/test_namer.py
index 736906e8..1be69f3f 100644
--- a/tests/test_namer.py
+++ b/tests/test_namer.py
@@ -33,17 +33,17 @@ def test_basename(self) -> None:
         )
 
     def test_received_name(self) -> None:
-        filename = StackFrameNamer().get_received_filename("./stuff")
-        self.assertEqual(filename, "./stuff.received.txt")
+        filename = StackFrameNamer().get_received_filename()
+        self.assertTrue(filename.endswith("NamerTests.test_received_name.received.txt"), filename)
 
     def test_approved_name(self) -> None:
-        filename = StackFrameNamer().get_approved_filename("./stuff")
-        self.assertEqual(filename, "./stuff.approved.txt")
+        filename = StackFrameNamer().get_approved_filename()
+        self.assertTrue(filename.endswith("NamerTests.test_approved_name.approved.txt"), filename)
 
     def test_alternative_extension(self) -> None:
         n = StackFrameNamer(extension=".html")
-        filename = n.get_approved_filename("./stuff")
-        self.assertEqual(filename, "./stuff.approved.html")
+        filename = n.get_approved_filename()
+        self.assertTrue(filename.endswith("NamerTests.test_alternative_extension.approved.html"), filename)
 
     def test_additional_information(self) -> None:
         assert_ends_with(