diff --git a/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java b/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java
index 70faa5ac4a..68fe5053b5 100644
--- a/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java
+++ b/services/core/java/com/android/server/connectivity/NetworkNotificationManager.java
@@ -182,7 +182,7 @@ public class NetworkNotificationManager {
             details = r.getString(R.string.network_switch_metered_detail, toTransport,
                     fromTransport);
         } else {
-            Slog.wtf(TAG, "Unknown notification type " + notifyType + "on network transport "
+            Slog.wtf(TAG, "Unknown notification type " + notifyType + " on network transport "
                     + getTransportName(transportType));
             return;
         }
diff --git a/tests/net/java/com/android/server/connectivity/NetworkNotificationManagerTest.java b/tests/net/java/com/android/server/connectivity/NetworkNotificationManagerTest.java
index 98073ce1e5..21c2de79d6 100644
--- a/tests/net/java/com/android/server/connectivity/NetworkNotificationManagerTest.java
+++ b/tests/net/java/com/android/server/connectivity/NetworkNotificationManagerTest.java
@@ -80,6 +80,7 @@ public class NetworkNotificationManagerTest extends TestCase {
         when(mCtx.getResources()).thenReturn(mResources);
         when(mCtx.getPackageManager()).thenReturn(mPm);
         when(mCtx.getApplicationInfo()).thenReturn(new ApplicationInfo());
+        when(mNetworkInfo.getExtraInfo()).thenReturn("extra");
         when(mResources.getColor(anyInt(), any())).thenReturn(0xFF607D8B);
 
         mManager = new NetworkNotificationManager(mCtx, mTelephonyManager, mNotificationManager);