1 files changed, 1 insertions, 0 deletions
diff --git a/eval.c b/eval.c
index 74dc4bf1..be559e6f 100644
--- a/eval.c
+++ b/eval.c
@@ -6771,6 +6771,7 @@ void eval_init(void)
   reg_fun(intern(lit("typeof"), user_package), func_n1(typeof));
   reg_fun(intern(lit("subtypep"), user_package), func_n2(subtypep));
   reg_fun(intern(lit("typep"), user_package), func_n2(typep));
+  reg_fun(intern(lit("built-in-type-p"), user_package), func_n1(built_in_type_p));
 
   reg_fun(intern(lit("atom"), user_package), func_n1(atom));
   reg_fun(intern(lit("null"), user_package), null_f);