diff --git a/test/unittests/test_time.cpp b/test/unittests/test_time.cpp
index e5841893..18e2acac 100644
--- a/test/unittests/test_time.cpp
+++ b/test/unittests/test_time.cpp
@@ -86,7 +86,7 @@ TEST(time, timeskew)
     }
   //OPENVPN_LOG(md.to_string());
   md.mean.check_mean_range("mean", 10100, 10300);
-  md.dev.check_mean_range("dev", 1250, 1300);
+  md.dev.check_mean_range("dev", 1250, 1350);
 }
 
 TEST(time, test1)
@@ -187,4 +187,4 @@ TEST(time, timeaddsub)
     add(sec, inf);
     add(inf, inf);
   }
-}
\ No newline at end of file
+}