diff --git a/internal/ceres/autodiff_test.cc b/internal/ceres/autodiff_test.cc
index 4049ad5..20f4437 100644
--- a/internal/ceres/autodiff_test.cc
+++ b/internal/ceres/autodiff_test.cc
@@ -185,7 +185,7 @@
                                                             fd_x, fd_J)));
 
   for (int i = 0; i < 2; ++i) {
-    ASSERT_EQ(fd_x[i], b_x[i]);
+    ASSERT_NEAR(fd_x[i], b_x[i], tol);
   }
 
   // Use automatic differentiation to compute the Jacobian.