1 files changed, 2 insertions, 1 deletions
diff --git a/extern/ceres/internal/ceres/block_evaluate_preparer.h b/extern/ceres/internal/ceres/block_evaluate_preparer.h
index 4378689729f..d72e41ba3e4 100644
--- a/extern/ceres/internal/ceres/block_evaluate_preparer.h
+++ b/extern/ceres/internal/ceres/block_evaluate_preparer.h
@@ -36,6 +36,7 @@
 #ifndef CERES_INTERNAL_BLOCK_EVALUATE_PREPARER_H_
 #define CERES_INTERNAL_BLOCK_EVALUATE_PREPARER_H_
 
+#include "ceres/internal/export.h"
 #include "ceres/scratch_evaluate_preparer.h"
 
 namespace ceres {
@@ -44,7 +45,7 @@ namespace internal {
 class ResidualBlock;
 class SparseMatrix;
 
-class BlockEvaluatePreparer {
+class CERES_NO_EXPORT BlockEvaluatePreparer {
  public:
   // Using Init() instead of a constructor allows for allocating this structure
   // with new[]. This is because C++ doesn't allow passing arguments to objects