diff --git a/internal/ceres/problem_impl.h b/internal/ceres/problem_impl.h
index 523860e..2ca0554 100644
--- a/internal/ceres/problem_impl.h
+++ b/internal/ceres/problem_impl.h
@@ -118,7 +118,7 @@
   map<double*, ParameterBlock*> parameter_block_map_;
 
   internal::scoped_ptr<internal::Program> program_;
-  DISALLOW_COPY_AND_ASSIGN(ProblemImpl);
+  CERES_DISALLOW_COPY_AND_ASSIGN(ProblemImpl);
 };
 
 }  // namespace internal