diff --git a/src/expression2/StringTable.cpp b/src/expression2/StringTable.cpp
index 174c9e9f..2d23d03e 100644
--- a/src/expression2/StringTable.cpp
+++ b/src/expression2/StringTable.cpp
@@ -19,7 +19,7 @@ namespace xo {
                                  bool debug_flag)
         : strings_{DArena::map(ArenaConfig{.name_ = "strings",
                                            .size_ = hint_max_capacity})},
-          map_{hint_max_capacity}
+          map_{"stringkeys", hint_max_capacity}
         {
             (void)debug_flag;
         }