diff --git a/src/main/java/dk/camelot64/kickc/TODO.txt b/src/main/java/dk/camelot64/kickc/TODO.txt
index f5610105a..2f6aecb34 100644
--- a/src/main/java/dk/camelot64/kickc/TODO.txt
+++ b/src/main/java/dk/camelot64/kickc/TODO.txt
@@ -1,6 +1,7 @@
 Known Problems
 - Increment/decrement of value pointed to by piinter does not work. eg. byte* BGCOL = $d020; (*BGCOL)++;
 - Arrays / strings allocated inline destroy functions (because they are allocated where the call enters.
+- Classic for() does not allow assignment as increment, eg. for(byte i=0;i<25;i=i+2) {}
 
 Features
 - Move the main code into a main() function, and disallow code outside functions. The main function per default has no parameters and exits with RTS.