diff --git a/hgext/graphlog.py b/hgext/graphlog.py
--- a/hgext/graphlog.py
+++ b/hgext/graphlog.py
@@ -257,7 +257,7 @@ def revset(pats, opts):
         'branch':      ('branch($)', ' or '),
         'exclude':     ('not file($)', ' and '),
         'include':     ('file($)', ' and '),
-        'keyword':     ('keyword($)', ' and '),
+        'keyword':     ('keyword($)', ' or '),
         'only_branch': ('branch($)', ' and '),
         'prune':       ('not ($ or ancestors($))', ' and '),
         'user':        ('user($)', ' or '),
diff --git a/tests/test-glog.t b/tests/test-glog.t
--- a/tests/test-glog.t
+++ b/tests/test-glog.t
@@ -1435,8 +1435,8 @@ Test log -G options
   abort: unknown revision 'not-a-branch'!
   $ testlog -b default -b branch
   ('group', ('group', ('or', ('func', ('symbol', 'branch'), ('string', 'default')), ('func', ('symbol', 'branch'), ('string', 'branch')))))
-  $ hg log -G --print-revset -k 'something' -k 'nice'
-  ('group', ('group', ('and', ('func', ('symbol', 'keyword'), ('string', 'something')), ('func', ('symbol', 'keyword'), ('string', 'nice')))))
+  $ testlog -k expand -k merge
+  ('group', ('group', ('or', ('func', ('symbol', 'keyword'), ('string', 'expand')), ('func', ('symbol', 'keyword'), ('string', 'merge')))))
   $ hg log -G --only-branch 'something nice'
   abort: unknown revision 'something nice'!
   [255]