diff --git a/README.md b/README.md
index 10f3d193..0392414d 100644
--- a/README.md
+++ b/README.md
@@ -41,3 +41,8 @@ npm install
 tests
 ------
 see test/README.md
+
+
+note on 0.4.x
+--------------
+output of large result sets is slow under node 0.4. Recommend running under 0.6 where possible.
\ No newline at end of file