1 files changed, 2 insertions, 0 deletions
diff --git a/eval.c b/eval.c
index d53a20be..d5cc61c8 100644
--- a/eval.c
+++ b/eval.c
@@ -7424,6 +7424,8 @@ void eval_init(void)
   reg_fun(intern(lit("unique"), user_package), func_n2ov(unique, 1));
   reg_fun(intern(lit("uniq"), user_package), func_n1(uniq));
   reg_fun(intern(lit("grade"), user_package), func_n3o(grade, 1));
+  reg_fun(intern(lit("hist-sort"), user_package), func_n1v(hist_sort));
+
   reg_fun(intern(lit("nrot"), user_package), func_n2o(nrot, 1));
   reg_fun(intern(lit("rot"), user_package), func_n2o(rot, 1));