diff --git a/internal/ceres/levenberg_marquardt_strategy_test.cc b/internal/ceres/levenberg_marquardt_strategy_test.cc
index ac7ddbc..fa81d5f 100644
--- a/internal/ceres/levenberg_marquardt_strategy_test.cc
+++ b/internal/ceres/levenberg_marquardt_strategy_test.cc
@@ -146,7 +146,7 @@
     ScopedMockLog log;
     EXPECT_CALL(log, Log(_, _, _)).Times(AnyNumber());
     EXPECT_CALL(log, Log(WARNING, _,
-                         HasSubstr("Failed to compute a finite step.")));
+                         HasSubstr("Failed to compute a step")));
 
     TrustRegionStrategy::Summary summary =
         lms.ComputeStep(pso, &dsm, &residual, x);