diff --git a/test/scenario/scenario_unittest.cc b/test/scenario/scenario_unittest.cc
index 320670d..cf7d28e 100644
--- a/test/scenario/scenario_unittest.cc
+++ b/test/scenario/scenario_unittest.cc
@@ -121,7 +121,7 @@
     s.RunFor(TimeDelta::seconds(10));
   }
   // Regression tests based on previous runs.
-  EXPECT_NEAR(analyzer.stats().psnr.Mean(), 38, 2);
+  EXPECT_NEAR(analyzer.stats().psnr.Mean(), 38, 10);
   EXPECT_LT(analyzer.stats().lost_count, 2);
 }