diff --git a/tsk/hashdb/sqlite_index.cpp b/tsk/hashdb/sqlite_index.cpp
index 3ff82422c68c75cae943811cc02d6c88e3b1e744..e5316e76e7dce084fee646166c37c9024e3386f3 100644
--- a/tsk/hashdb/sqlite_index.cpp
+++ b/tsk/hashdb/sqlite_index.cpp
@@ -720,6 +720,8 @@ sqlite_v1_close(TSK_IDX_INFO * idx_info)
         finalize_stmt(m_stmt);
     }
 
+    m_stmt = NULL;
+
     if (idx_info->idx_struct.idx_sqlite_v1->hIdx_sqlite) {
         sqlite3_close(idx_info->idx_struct.idx_sqlite_v1->hIdx_sqlite);
     }