diff --git a/TODO b/TODO
index 952bf394..51755654 100644
--- a/TODO
+++ b/TODO
@@ -11,3 +11,4 @@
 * possibly implement undefined template tags custom handling
 * think about possibility of supporting something like {$data[foo].{$key[bar]}}
 * allow {custom} .. {/custom} style of custom functions
+* ability to concatenate values/strings together