diff --git a/lib/resque/scheduler/scheduling_extensions.rb b/lib/resque/scheduler/scheduling_extensions.rb
index b2d474d1..19546247 100644
--- a/lib/resque/scheduler/scheduling_extensions.rb
+++ b/lib/resque/scheduler/scheduling_extensions.rb
@@ -85,7 +85,7 @@ def all_schedules
       def set_schedule(name, config, reload = true)
         persist = config.delete(:persist) || config.delete('persist')
 
-        if persist
+        if persist.nil? || persist
           redis.hset(:persistent_schedules, name, encode(config))
         else
           non_persistent_schedules[name] = decode(encode(config))