diff --git a/app/src/main/java/org/opencord/maclearner/app/impl/OsgiPropertyConstants.java b/app/src/main/java/org/opencord/maclearner/app/impl/OsgiPropertyConstants.java
index 11fdf2f..8309fea 100644
--- a/app/src/main/java/org/opencord/maclearner/app/impl/OsgiPropertyConstants.java
+++ b/app/src/main/java/org/opencord/maclearner/app/impl/OsgiPropertyConstants.java
@@ -27,7 +27,7 @@
     public static final int CACHE_DURATION_DEFAULT = 86400; // 1 day
 
     public static final String AUTO_CLEAR_MAC_MAPPING = "autoClearMacMapping";
-    public static final boolean AUTO_CLEAR_MAC_MAPPING_DEFAULT = false;
+    public static final boolean AUTO_CLEAR_MAC_MAPPING_DEFAULT = true;
 
     public static final String ENABLE_DHCP_FORWARD = "enableDhcpForward";
     public static final boolean ENABLE_DHCP_FORWARD_DEFAULT = false;