1 files changed, 2 insertions, 2 deletions
diff --git a/error.c b/error.c
index 88c4c226cd..2bca03f0da 100644
--- a/error.c
+++ b/error.c
@@ -1116,9 +1116,9 @@ nometh_err_args(VALUE self)
 void
 rb_invalid_str(const char *str, const char *type)
 {
-    volatile VALUE s = rb_str_inspect(rb_str_new2(str));
+    VALUE s = rb_str_inspect(rb_str_new2(str));
 
-    rb_raise(rb_eArgError, "invalid value for %s: %s", type, RSTRING_PTR(s));
+    rb_raise(rb_eArgError, "invalid value for %s: %"PRIsVALUE, type, s);
 }
 
 /*