1 files changed, 1 insertions, 0 deletions
diff --git a/TODO b/TODO
index 1d28731e68..f462f5c6ce 100644
--- a/TODO
+++ b/TODO
@@ -9,5 +9,6 @@
 * remove assertions from W_UnicodeObject.__init__ if all the builders pass
 * what to do with error handlers that go backwards. There were tests
   in test_codecs that would check for that
+* improve performance of splitlines
 
 * fix _pypyjson to not use a wrapped dict when decoding an object