diff --git a/libagent/ssh/__init__.py b/libagent/ssh/__init__.py
index caf3e18..c01364e 100644
--- a/libagent/ssh/__init__.py
+++ b/libagent/ssh/__init__.py
@@ -1,5 +1,4 @@
 """SSH-agent implementation using hardware authentication devices."""
-import argparse
 import contextlib
 import functools
 import io
@@ -11,6 +10,7 @@ import sys
 import tempfile
 import threading
 
+import configargparse
 
 from .. import device, formats, server, util
 from . import client, protocol
@@ -57,7 +57,7 @@ def _to_unicode(s):
 
 def create_agent_parser():
     """Create an ArgumentParser for this tool."""
-    p = argparse.ArgumentParser()
+    p = configargparse.ArgParser(default_config_files=['~/.ssh/agent.config'])
     p.add_argument('-v', '--verbose', default=0, action='count')
 
     curve_names = [name for name in formats.SUPPORTED_CURVES]
diff --git a/setup.py b/setup.py
index d051927..98d3916 100755
--- a/setup.py
+++ b/setup.py
@@ -16,6 +16,7 @@ setup(
     ],
     install_requires=[
         'backports.shutil_which>=3.5.1',
+        'ConfigArgParse>=0.12.0',
         'ecdsa>=0.13',
         'ed25519>=1.4',
         'pymsgbox>=1.0.6',