diff --git a/vdirsyncer/cli/config.py b/vdirsyncer/cli/config.py
index 893c42d..87296d9 100644
--- a/vdirsyncer/cli/config.py
+++ b/vdirsyncer/cli/config.py
@@ -91,7 +91,7 @@ class _ConfigReader:
     def __init__(self, f):
         self._file = f
         self._parser = c = RawConfigParser()
-        c.readfp(f)
+        c.read_file(f)
         self._seen_names = set()
 
         self._general = {}