diff --git a/extern/libmv/third_party/ceres/include/ceres/autodiff_cost_function.h b/extern/libmv/third_party/ceres/include/ceres/autodiff_cost_function.h
index da9ee2c7993..e86d6993864 100644
--- a/extern/libmv/third_party/ceres/include/ceres/autodiff_cost_function.h
+++ b/extern/libmv/third_party/ceres/include/ceres/autodiff_cost_function.h
@@ -163,7 +163,7 @@ class AutoDiffCostFunction :
   explicit AutoDiffCostFunction(CostFunctor* functor)
       : functor_(functor) {
     CHECK_NE(M, DYNAMIC) << "Can't run the fixed-size constructor if the "
-                          << "number of residuals is set to ceres::DYNAMIC.";
+                         << "number of residuals is set to ceres::DYNAMIC.";
   }
 
   // Takes ownership of functor. Ignores the template-provided number of
@@ -174,7 +174,7 @@ class AutoDiffCostFunction :
   AutoDiffCostFunction(CostFunctor* functor, int num_residuals)
       : functor_(functor) {
     CHECK_EQ(M, DYNAMIC) << "Can't run the dynamic-size constructor if the "
-                          << "number of residuals is not ceres::DYNAMIC.";
+                         << "number of residuals is not ceres::DYNAMIC.";
     SizedCostFunction<M, N0, N1, N2, N3, N4, N5>::set_num_residuals(num_residuals);
   }