1 files changed, 1 insertions, 0 deletions
diff --git a/marshal.c b/marshal.c
index 90c0788b83..473aee9ccd 100644
--- a/marshal.c
+++ b/marshal.c
@@ -871,6 +871,7 @@ r_bytes0(len, arg)
 {
     VALUE str;
 
+    if (len == 0) return rb_str_new(0, 0);
     if (!arg->end) {
 	VALUE src = (VALUE)arg->ptr;
 	VALUE n = LONG2NUM(len);