diff --git a/settings/env.defaults b/settings/env.defaults
index 114f54de..ead943b9 100644
--- a/settings/env.defaults
+++ b/settings/env.defaults
@@ -58,7 +58,7 @@ NOMINATIM_IMPORT_STYLE=extratags
 # Location of the flatnode file used by osm2pgsql to store node locations.
 # When unset, osm2pgsql stores the location in the PostgreSQL database. This
 # is especially useful for imports of larger areas, like continents or the
-# full planet. The file needs at least 70GB storage.
+# full planet. The file needs at least 100GB storage.
 NOMINATIM_FLATNODE_FILE=
 
 ### Tablespace settings