diff --git a/TODO b/TODO
index 36d6b26..e59353a 100644
--- a/TODO
+++ b/TODO
@@ -7,6 +7,7 @@ Target release: 0.1.4
 * get rid of manual rules
 * add direct conversion opcodes to/from float32 and float64
 * add rounding towards zero
+* try to be smarter with %rax for variadic functions on x86-64
 
 Target Release: 0.2.0
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