diff --git a/tests/run-tests.py b/tests/run-tests.py
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -2513,6 +2513,7 @@ def sorttests(testdescs, previoustimes, 
                 b'check': 100,
                 b'gendoc': 100,
                 b'contrib-perf': 200,
+                b'merge-combination': 100,
                 }
         perf = {}