diff --git a/silkworm/db/datastore/kvdb/cursor_iterator.hpp b/silkworm/db/datastore/kvdb/cursor_iterator.hpp
index e2a6e25bb3..bce5b96977 100644
--- a/silkworm/db/datastore/kvdb/cursor_iterator.hpp
+++ b/silkworm/db/datastore/kvdb/cursor_iterator.hpp
@@ -58,6 +58,12 @@ class CursorMoveIterator {
     friend bool operator==(const CursorMoveIterator& it, const std::default_sentinel_t&) {
         return !it.cursor_;
     }
+    friend bool operator!=(const std::default_sentinel_t&, const CursorMoveIterator& it) {
+        return !!it.cursor_;
+    }
+    friend bool operator==(const std::default_sentinel_t&, const CursorMoveIterator& it) {
+        return !it.cursor_;
+    }
 
   private:
     std::shared_ptr<ROCursor> cursor_;