1 files changed, 2 insertions, 0 deletions
diff --git a/eval.c b/eval.c
index 9f9ce124..81ece344 100644
--- a/eval.c
+++ b/eval.c
@@ -1157,7 +1157,9 @@ void eval_init(void)
   reg_fun(intern(lit("trunc"), user_package), func_n2(trunc));
   reg_fun(intern(lit("mod"), user_package), func_n2(mod));
   reg_fun(intern(lit("fixnump"), user_package), func_n1(fixnump));
+  reg_fun(intern(lit("bignump"), user_package), func_n1(bignump));
 
+  reg_fun(intern(lit("zerop"), user_package), func_n1(zerop));
   reg_fun(intern(lit(">"), user_package), func_n1v(gtv));
   reg_fun(intern(lit("<"), user_package), func_n1v(ltv));
   reg_fun(intern(lit(">="), user_package), func_n1v(gev));