1 files changed, 5 insertions, 1 deletions
diff --git a/error.c b/error.c
index 1cdf4692f0..cb56c4e163 100644
--- a/error.c
+++ b/error.c
@@ -164,8 +164,9 @@ rb_check_type(x, t)
     int t;
 {
     struct types *type = builtin_types;
+    int tt = TYPE(x);
 
-    if (TYPE(x)!=(t)) {
+    if (tt != t) {
 	while (type->type >= 0) {
 	    if (type->type == t) {
 		char *etype;
@@ -173,6 +174,9 @@ rb_check_type(x, t)
 		if (NIL_P(x)) {
 		    etype = "nil";
 		}
+		else if (FIXNUM_P(x)) {
+		    etype = "Fixnum";
+		}
 		else if (rb_special_const_p(x)) {
 		    etype = RSTRING(obj_as_string(x))->ptr;
 		}