diff --git a/codearchiver/subprocess.py b/codearchiver/subprocess.py
index 5422851..5a187cd 100644
--- a/codearchiver/subprocess.py
+++ b/codearchiver/subprocess.py
@@ -66,6 +66,7 @@ def run_with_log(args, *, check = True, input = None, **kwargs):
 					stdout.append(data)
 	if stderrBuf:
 		_logger.info(stderrBuf.decode('utf-8'))
+	p.wait()
 	assert p.poll() is not None
 	if input is not None and stdinOffset < len(input):
 		_logger.warning(f'Could not write all input to the stdin pipe (wanted to write {len(input)} bytes, only wrote {stdinOffset})')