diff --git a/mercurial/wireproto.py b/mercurial/wireproto.py
--- a/mercurial/wireproto.py
+++ b/mercurial/wireproto.py
@@ -349,6 +349,8 @@ class wirepeer(peer.peerrepository):
                 value = encodelist(value)
             elif keytype == 'csv':
                 value = ','.join(value)
+            elif keytype == 'boolean':
+                value = bool(value)
             elif keytype != 'plain':
                 raise KeyError('unknown getbundle option type %s'
                                % keytype)
@@ -652,6 +654,8 @@ def getbundle(repo, proto, others):
             opts[k] = decodelist(v)
         elif keytype == 'csv':
             opts[k] = set(v.split(','))
+        elif keytype == 'boolean':
+            opts[k] = '%i' % bool(v)
         elif keytype != 'plain':
             raise KeyError('unknown getbundle option type %s'
                            % keytype)