diff --git a/servers/src/main/java/tachyon/master/TachyonMaster.java b/servers/src/main/java/tachyon/master/TachyonMaster.java
index <HASH>..<HASH> 100644
--- a/servers/src/main/java/tachyon/master/TachyonMaster.java
+++ b/servers/src/main/java/tachyon/master/TachyonMaster.java
@@ -127,6 +127,8 @@ public class TachyonMaster {
       }
       return new TachyonMaster();
     }
+    
+    private Factory() {} // prevent instantiation.
   }
 
   protected TachyonMaster() {
[TACHYON-<I>] Private constructor for the Factory class.