diff --git a/psutil/tests/test_system.py b/psutil/tests/test_system.py
index 43b1199f4..42903abbc 100755
--- a/psutil/tests/test_system.py
+++ b/psutil/tests/test_system.py
@@ -433,7 +433,7 @@ def test_per_cpu_times_2(self):
                 if difference >= 0.05:
                     return
 
-    @retry_on_failure
+    @retry_on_failure(30)
     def test_cpu_times_comparison(self):
         # Make sure the sum of all per cpu times is almost equal to
         # base "one cpu" times.