diff --git a/tutorials/syncbase-user-guide.md b/tutorials/syncbase-user-guide.md
index 9d2c08f..94edb1c 100644
--- a/tutorials/syncbase-user-guide.md
+++ b/tutorials/syncbase-user-guide.md
@@ -351,7 +351,7 @@
     sg.Create(ctx, wire.SyncGroupSpec{
       Description: "my syncgroup",
       Perms:       perms,
-      Prefixes:    []string{"mytable:foo"},
+      Prefixes:    []wire.SyncGroupPrefix{{TableName: "mytable", RowPrefix: "foo"}},
       MountTables: []string{"/ns.dev.v.io:8101"},
     }, wire.SyncGroupMemberInfo{
       SyncPriority: 8