diff --git a/dom/network/tests/unit_stats/test_networkstats_db.js b/dom/network/tests/unit_stats/test_networkstats_db.js
index ffce85ec70a5..40414fa15ea8 100644
--- a/dom/network/tests/unit_stats/test_networkstats_db.js
+++ b/dom/network/tests/unit_stats/test_networkstats_db.js
@@ -19,6 +19,10 @@ function clearStore(store, callback) {
   }, callback);
 }
 
+function getNetworkId(aIccId, aNetworkType) {
+  return aIccId + '' + aNetworkType;
+}
+
 add_test(function prepareDatabase() {
   // Clear whole database to avoid starting tests with unknown state
   // due to the previous tests.
@@ -121,6 +125,10 @@ add_test(function test_fillResultSamples_noEmptyData() {
 
 add_test(function test_clear() {
   var networks = getNetworks();
+  networks.forEach(function(network, index) {
+    networks[index] = {network: network, networkId: getNetworkId(network.id, network.type)};
+  }, this);
+
   netStatsDb.clearStats(networks, function (error, result) {
     do_check_eq(error, null);
     run_next_test();
@@ -129,6 +137,10 @@ add_test(function test_clear() {
 
 add_test(function test_clear_interface() {
   var networks = getNetworks();
+  networks.forEach(function(network, index) {
+    networks[index] = {network: network, networkId: getNetworkId(network.id, network.type)};
+  }, this);
+
   netStatsDb.clearInterfaceStats(networks[0], function (error, result) {
     do_check_eq(error, null);
     run_next_test();
diff --git a/dom/network/tests/unit_stats/test_networkstats_service.js b/dom/network/tests/unit_stats/test_networkstats_service.js
index 8cd893c1962f..9c72dc532257 100644
--- a/dom/network/tests/unit_stats/test_networkstats_service.js
+++ b/dom/network/tests/unit_stats/test_networkstats_service.js
@@ -19,8 +19,12 @@ add_test(function test_clearDB() {
   getNetworks(function onGetNetworks(error, result) {
     do_check_eq(error, null);
     var networks = result;
+    networks.forEach(function(network, index) {
+      networks[index] = {network: network, networkId: NetworkStatsService.getNetworkId(network.id, network.type)};
+    }, this);
+
     NetworkStatsService._db.clearStats(networks, function onDBCleared(error, result) {
-      do_check_eq(result, null);
+      do_check_eq(error, null);
       run_next_test();
     });
   });