1 files changed, 1 insertions, 1 deletions
diff --git a/random.c b/random.c
index 4154879e37..5556bded3e 100644
--- a/random.c
+++ b/random.c
@@ -1055,7 +1055,7 @@ random_rand(int argc, VALUE *argv, VALUE obj)
 	long x = FIX2LONG(beg) + FIX2LONG(v);
 	return LONG2NUM(x);
     }
-    switch (BUILTIN_TYPE(v)) {
+    switch (TYPE(v)) {
       case T_BIGNUM:
 	return rb_big_plus(v, beg);
       case T_FLOAT: