1 files changed, 1 insertions, 1 deletions
diff --git a/object.c b/object.c
index b87a1d3a90..2654bd198f 100644
--- a/object.c
+++ b/object.c
@@ -2165,7 +2165,7 @@ rb_check_convert_type(val, type, tname, method)
 static VALUE
 rb_to_integer(val, method)
     VALUE val;
-    char *method;
+    const char *method;
 {
     VALUE v = convert_type(val, "Integer", method, Qtrue);
     if (!rb_obj_is_kind_of(v, rb_cInteger)) {