1 files changed, 3 insertions, 3 deletions
diff --git a/object.c b/object.c
index 27af5b33e3..b87a1d3a90 100644
--- a/object.c
+++ b/object.c
@@ -357,9 +357,9 @@ rb_any_to_s(obj)
     size_t len;
     VALUE str;
 
-    len = strlen(cname)+6+16+1;
-    str = rb_str_new(0, len); /* 6:tags 16:addr 1:nul */
-    snprintf(RSTRING(str)->ptr, len, "#<%s:0x%lx>", cname, obj);
+    len = strlen(cname)+6+16;
+    str = rb_str_new(0, len); /* 6:tags 16:addr */
+    snprintf(RSTRING(str)->ptr, len+1, "#<%s:0x%lx>", cname, obj);
     RSTRING(str)->len = strlen(RSTRING(str)->ptr);
     if (OBJ_TAINTED(obj)) OBJ_TAINT(str);