diff --git a/libgnucash/engine/qofid.cpp b/libgnucash/engine/qofid.cpp
index 62d4ec46b0..cde7fd524e 100644
--- a/libgnucash/engine/qofid.cpp
+++ b/libgnucash/engine/qofid.cpp
@@ -47,14 +47,7 @@ struct QofCollection_s
 
     QofCollection_s (QofIdType type) : e_type{static_cast<QofIdType>(CACHE_INSERT(type))}
                                      , is_dirty{FALSE}
-                                     , data{NULL}
-    {
-        if (!g_strcmp0 (e_type, "Split"))
-            guid_entity_map.reserve (50000);
-        else if (!g_strcmp0 (e_type, "Trans"))
-            guid_entity_map.reserve (10000);
-    }
-
+                                     , data{NULL} {}
     ~QofCollection_s ()
     {
         CACHE_REMOVE (e_type);