diff --git a/search/v2/mwm_context.hpp b/search/v2/mwm_context.hpp
index b1f4463b9f..58ff43cd0c 100644
--- a/search/v2/mwm_context.hpp
+++ b/search/v2/mwm_context.hpp
@@ -75,7 +75,12 @@ private:
   {
     CheckUniqueIndexes checkUnique(m_value.GetHeader().GetFormat() >= version::Format::v5);
     for (auto const & i : intervals)
-      m_index.ForEachInIntervalAndScale([&] (uint32_t index) { fn(index); }, i.first, i.second, scale);
+      m_index.ForEachInIntervalAndScale(
+            [&] (uint32_t index)
+            {
+              if (checkUnique(index))
+                fn(index);
+            }, i.first, i.second, scale);
   }
 
   DISALLOW_COPY_AND_MOVE(MwmContext);