diff --git a/internal/ceres/sparse_normal_cholesky_solver.cc b/internal/ceres/sparse_normal_cholesky_solver.cc
index 0cd064b..bc1f983 100644
--- a/internal/ceres/sparse_normal_cholesky_solver.cc
+++ b/internal/ceres/sparse_normal_cholesky_solver.cc
@@ -204,14 +204,15 @@
   event_logger.AddEvent("Setup");
 
   if (factor_ == NULL) {
-    if (options_.use_block_amd) {
+    if (options_.use_postordering) {
       factor_ = ss_.BlockAnalyzeCholesky(&lhs,
                                          A->col_blocks(),
                                          A->row_blocks());
     } else {
-      factor_ = ss_.AnalyzeCholesky(&lhs);
+      factor_ = ss_.AnalyzeCholeskyWithNaturalOrdering(&lhs);
     }
   }
+
   event_logger.AddEvent("Analysis");
 
   cholmod_dense* sol = ss_.SolveCholesky(&lhs, factor_, rhs);