diff --git a/hgext/convert/__init__.py b/hgext/convert/__init__.py
--- a/hgext/convert/__init__.py
+++ b/hgext/convert/__init__.py
@@ -34,6 +34,9 @@ configitem = registrar.configitem(config
 configitem('convert', 'cvsps.cache',
     default=True,
 )
+configitem('convert', 'cvsps.fuzz',
+    default=60,
+)
 
 # Commands definition was moved elsewhere to ease demandload job.
 
diff --git a/hgext/convert/cvs.py b/hgext/convert/cvs.py
--- a/hgext/convert/cvs.py
+++ b/hgext/convert/cvs.py
@@ -80,7 +80,7 @@ class convert_cvs(converter_source):
                 cache = None
             db = cvsps.createlog(self.ui, cache=cache)
             db = cvsps.createchangeset(self.ui, db,
-                fuzz=int(self.ui.config('convert', 'cvsps.fuzz', 60)),
+                fuzz=int(self.ui.config('convert', 'cvsps.fuzz')),
                 mergeto=self.ui.config('convert', 'cvsps.mergeto', None),
                 mergefrom=self.ui.config('convert', 'cvsps.mergefrom', None))