diff --git a/service/src/com/android/server/ConnectivityService.java b/service/src/com/android/server/ConnectivityService.java
index d8417c1..47e0bd9 100755
--- a/service/src/com/android/server/ConnectivityService.java
+++ b/service/src/com/android/server/ConnectivityService.java
@@ -12884,6 +12884,7 @@
             case ConnectivityManager.FIREWALL_CHAIN_POWERSAVE:
             case ConnectivityManager.FIREWALL_CHAIN_RESTRICTED:
             case ConnectivityManager.FIREWALL_CHAIN_LOW_POWER_STANDBY:
+            case ConnectivityManager.FIREWALL_CHAIN_BACKGROUND:
                 defaultRule = FIREWALL_RULE_DENY;
                 break;
             default: