diff --git a/internal/ceres/suitesparse.cc b/internal/ceres/suitesparse.cc
index 1df7566..d8b1a49 100644
--- a/internal/ceres/suitesparse.cc
+++ b/internal/ceres/suitesparse.cc
@@ -44,6 +44,8 @@
 namespace ceres {
 namespace internal {
 
+using std::vector;
+
 SuiteSparse::SuiteSparse() {
   cholmod_start(&cc_);
 }