diff --git a/src/formats/simplenote.py b/src/formats/simplenote.py
index b7b1bc2e..d0115ca3 100644
--- a/src/formats/simplenote.py
+++ b/src/formats/simplenote.py
@@ -13,9 +13,6 @@
 class Converter(converter.BaseConverter):
     accepted_extensions = [".zip"]
 
-    def prepare_input(self, input_: Path) -> Path:
-        return common.extract_zip(input_, "source/notes.json")
-
     def convert(self, file_or_folder: Path):
         input_json = json.loads(
             (self.root_path / "source/notes.json").read_text(encoding="utf-8")
diff --git a/src/formats/standard_notes.py b/src/formats/standard_notes.py
index 537a175d..7f6f69bc 100644
--- a/src/formats/standard_notes.py
+++ b/src/formats/standard_notes.py
@@ -13,9 +13,6 @@
 class Converter(converter.BaseConverter):
     accepted_extensions = [".zip"]
 
-    def prepare_input(self, input_: Path) -> Path:
-        return common.extract_zip(input_, "Standard Notes Backup and Import File.txt")
-
     def convert(self, file_or_folder: Path):
         input_json = json.loads(
             (self.root_path / "Standard Notes Backup and Import File.txt").read_text(