1 files changed, 4 insertions, 0 deletions
diff --git a/complex.c b/complex.c
index a6538606f6..1aae3b6ca8 100644
--- a/complex.c
+++ b/complex.c
@@ -1259,6 +1259,10 @@ static VALUE
 nucomp_marshal_load(VALUE self, VALUE a)
 {
     get_dat1(self);
+
+    rb_check_frozen(self);
+    rb_check_trusted(self);
+
     Check_Type(a, T_ARRAY);
     if (RARRAY_LEN(a) != 2)
 	rb_raise(rb_eArgError, "marshaled complex must have an array whose length is 2 but %ld", RARRAY_LEN(a));