diff --git a/app.rb b/app.rb
index 4784ebe..6b8f205 100644
--- a/app.rb
+++ b/app.rb
@@ -134,7 +134,7 @@ class Health
   include UpDown
 
   def initialize
-    @file = "./healthy"
+    @file = "/dev/shm/healthy"
   end
 
   def healthy?
@@ -148,7 +148,7 @@ class Ready
   include UpDown
 
   def initialize
-    @file = "./ready"
+    @file = "/dev/shm/ready"
   end
 
   def ready?
@@ -161,7 +161,7 @@ class Sleep
   include State
 
   def initialize
-    @file = "./sleep"
+    @file = "/dev/shm/sleep"
   end
 
   def asleep?