diff --git a/generator/cli.py b/generator/cli.py
index de7415f..0eb8457 100644
--- a/generator/cli.py
+++ b/generator/cli.py
@@ -57,7 +57,7 @@ def main() -> None:
     logger.info(f'Generator: {args.generator}')
 
     logger.info('Parsing headers')
-    extracted_symbols = parse_headers(input_files, output_dir, tmp_dir)
+    extracted_symbols = parse_headers(input_files, tmp_dir)
     with open(tmp_dir / 'extracted_symbols.json', 'w') as f:
         f.write(json.dumps({
             'structs': extracted_symbols.structs,
diff --git a/generator/generators/base_generator.py b/generator/generators/base_generator.py
index c2c620f..caca0cc 100644
--- a/generator/generators/base_generator.py
+++ b/generator/generators/base_generator.py
@@ -37,6 +37,7 @@ class BaseGenerator:
 
     def write_outputs(self, output_dir: Path) -> None:
         for file_name, content in self.output_content.items():
+            (output_dir / file_name).parent.mkdir(parents=True, exist_ok=True)
             with open(output_dir / file_name, 'w') as f:
                 f.write("\n".join(content))
 
diff --git a/generator/parser.py b/generator/parser.py
index 06eb4d4..f652e49 100644
--- a/generator/parser.py
+++ b/generator/parser.py
@@ -132,7 +132,7 @@ class Visitor(c_ast.NodeVisitor):
         self.generic_visit(node)
 
 
-def parse_headers(input_files: list[Path], output_dir: Path, tmp_dir: Path) -> ExtractedSymbols:
+def parse_headers(input_files: list[Path], tmp_dir: Path) -> ExtractedSymbols:
     cpp_args = ["-nostdinc", "-D__attribute__(x)=", "-E"]
 
     # Make a new clay.h that combines the provided input files, so that we can add bindings for customized structs