diff --git a/bacnet-stack/doc/README.todo b/bacnet-stack/doc/README.todo
index b1470974..0af7575a 100644
--- a/bacnet-stack/doc/README.todo
+++ b/bacnet-stack/doc/README.todo
@@ -27,3 +27,4 @@ P. Convert datalink methods to use function pointers that can be
 Q. Create BACnet router code that uses more than one datalink.
 R. splint the code.  Make intelligent fixes.
 S. Fix src/mstp.c so that indent can parse it correctly.
+T. Add "inline" to static functions that are only used once.