diff --git a/tests/run-tests.py b/tests/run-tests.py
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -1664,7 +1664,7 @@ class TestRunner(object):
             # keywords for slow tests
             slow = {b'svn': 10,
                     b'gendoc': 10,
-                    b'check-code-hg': 10,
+                    b'check-code-hg': 100,
                    }
             def sortkey(f):
                 # run largest tests first, as they tend to take the longest