diff --git a/internal/ceres/schur_complement_solver.h b/internal/ceres/schur_complement_solver.h
index 039bc09..7cd019a 100644
--- a/internal/ceres/schur_complement_solver.h
+++ b/internal/ceres/schur_complement_solver.h
@@ -159,7 +159,7 @@
 
   SuiteSparse ss_;
   // Symbolic factorization of the reduced linear system. Precomputed
-  // once and reused if constant_sparsity_ is true.
+  // once and reused in subsequent calls.
   cholmod_factor* symbolic_factor_;
   DISALLOW_COPY_AND_ASSIGN(SparseSchurComplementSolver);
 };