1 files changed, 1 insertions, 1 deletions
diff --git a/marshal.c b/marshal.c
index fc6bff31c9..f442053c5a 100644
--- a/marshal.c
+++ b/marshal.c
@@ -929,7 +929,7 @@ r_bytes0(long len, struct load_arg *arg)
 
     if (len == 0) return rb_str_new(0, 0);
     if (TYPE(arg->src) == T_STRING) {
-	if (RSTRING_LEN(arg->src) > arg->offset + len) {
+	if (RSTRING_LEN(arg->src) >= arg->offset + len) {
 	    str = rb_str_new(RSTRING_PTR(arg->src)+arg->offset, len);
 	    arg->offset += len;
 	}