diff --git a/sys/src/cmd/tcs/conv.h b/sys/src/cmd/tcs/conv.h
index 4c84cabbe..628500af8 100644
--- a/sys/src/cmd/tcs/conv.h
+++ b/sys/src/cmd/tcs/conv.h
@@ -15,7 +15,6 @@ void uksc_in(int fd, long *notused, struct convert *out);
 void uksc_out(Rune *base, int n, long *notused);
 void html_in(int fd, long *notused, struct convert *out);
 void html_out(Rune *base, int n, long *notused);
-void unhtml_in(int fd, long *notused, struct convert *out);
 void tune_in(int fd, long *notused, struct convert *out);
 void tune_out(Rune *base, int n, long *notused);