diff --git a/internal/core/src/mmap/Column.h b/internal/core/src/mmap/Column.h
index 916bb07b0e1c8..5d57f5964bdc1 100644
--- a/internal/core/src/mmap/Column.h
+++ b/internal/core/src/mmap/Column.h
@@ -503,6 +503,7 @@ class VariableColumn : public ColumnBase {
 
         // Not need indices_ after
         indices_.clear();
+        std::vector<uint64_t>().swap(indices_);
     }
 
  protected: