diff --git a/.rc.d/c64.sh b/.rc.d/c64.sh
index 9234717..3aee5e9 100755
--- a/.rc.d/c64.sh
+++ b/.rc.d/c64.sh
@@ -1,4 +1,5 @@
 if [ -f "$HOME/Applications/KickAssembler/KickAss.jar" ]; then
+    # TODO: typeset may fail if CLASSPATH is already tied by another script. Handle this.
     typeset -T CLASSPATH classpath
     classpath+="$HOME/Applications/KickAssembler/KickAss.jar"
     export CLASSPATH