1 files changed, 1 insertions, 0 deletions
diff --git a/eval.c b/eval.c
index e9c770ef..0f0b516a 100644
--- a/eval.c
+++ b/eval.c
@@ -5311,6 +5311,7 @@ void eval_init(void)
   reg_fun(intern(lit("clamp"), user_package), func_n3(clamp));
   reg_fun(intern(lit("pos-max"), user_package), func_n3o(pos_max, 1));
   reg_fun(intern(lit("pos-min"), user_package), func_n3o(pos_min, 1));
+  reg_fun(intern(lit("mismatch"), user_package), func_n4o(mismatch, 2));
   reg_fun(intern(lit("take"), user_package), func_n2(take));
   reg_fun(intern(lit("take-while"), user_package), func_n3o(take_while, 2));
   reg_fun(intern(lit("take-until"), user_package), func_n3o(take_until, 2));