diff --git a/gtk/conf.c b/gtk/conf.c
index de82552c0..d78a9757a 100644
--- a/gtk/conf.c
+++ b/gtk/conf.c
@@ -77,6 +77,8 @@ tr_prefs_init_defaults (tr_benc * d)
   if (!str)
     str = tr_getDefaultDownloadDir ();
 
+  tr_bencDictReserve (d, 29);
+
   tr_bencDictAddStr (d, PREF_KEY_DIR_WATCH, str);
   tr_bencDictAddBool (d, PREF_KEY_DIR_WATCH_ENABLED, FALSE);
 
diff --git a/libtransmission/session.c b/libtransmission/session.c
index 09593ad0f..19d8907f5 100644
--- a/libtransmission/session.c
+++ b/libtransmission/session.c
@@ -307,7 +307,7 @@ tr_sessionGetDefaultSettings (tr_benc * d)
 {
     assert (tr_bencIsDict (d));
 
-    tr_bencDictReserve (d, 60);
+    tr_bencDictReserve (d, 62);
     tr_bencDictAddBool (d, TR_PREFS_KEY_BLOCKLIST_ENABLED,               false);
     tr_bencDictAddStr (d, TR_PREFS_KEY_BLOCKLIST_URL,                   "http://www.example.com/blocklist");
     tr_bencDictAddInt (d, TR_PREFS_KEY_MAX_CACHE_SIZE_MB,               DEFAULT_CACHE_SIZE_MB);