diff --git a/slate/slate.py b/slate/slate.py
index e5ae6d9..a29e7a7 100644
--- a/slate/slate.py
+++ b/slate/slate.py
@@ -83,6 +83,8 @@ class Slate():
 
     def expand_vars(self, string, **kwargs):
         if isinstance(string, str):
+            if string == '{rand}':
+                return int(random.random()*99999999)
             return string.format(**kwargs, rand=int(random.random()*99999999))
         return string