diff --git a/scheme/cyclone/cgen.sld b/scheme/cyclone/cgen.sld
index fd5ea0e2..4619fed0 100644
--- a/scheme/cyclone/cgen.sld
+++ b/scheme/cyclone/cgen.sld
@@ -922,6 +922,7 @@
                     )
                 (cond
 ;; TODO: check for self-call
+;; TODO: use (self-closure-call? ast self)
 ;;                  ((and fnc
 ;;                        (adbf:calls-self? fnc)
 ;;