[2268] constify

diff --git a/src/lib/datasrc/memory/zone_data_updater.h b/src/lib/datasrc/memory/zone_data_updater.h
index eda204ae36cb49808983ea68e5c60864e9046ace..4a06236d35d5deb34d77b7adefa7ba8c596df462 100644 (file)
--- a/src/lib/datasrc/memory/zone_data_updater.h
+++ b/src/lib/datasrc/memory/zone_data_updater.h
@@ -171,7 +171,7 @@ private:
     const isc::dns::Name& zone_name_;
     ZoneData& zone_data_;
     RdataEncoder encoder_;
-    isc::dns::NSEC3Hash* hash_;
+    const isc::dns::NSEC3Hash* hash_;
 };
 
 // A helper internal class for load().  make it non-copyable to avoid