diff --git a/core/java/android/os/WorkSource.java b/core/java/android/os/WorkSource.java
index b79bdee93d971..30d535bdcd007 100644
--- a/core/java/android/os/WorkSource.java
+++ b/core/java/android/os/WorkSource.java
@@ -96,6 +96,16 @@ public class WorkSource implements Parcelable {
         return mNames != null ? mNames[index] : null;
     }
 
+    /**
+     * Clear names from this WorkSource.  Uids are left intact.
+     *
+     * <p>Useful when combining with another WorkSource that doesn't have names.
+     * @hide
+     */
+    public void clearNames() {
+        mNames = null;
+    }
+
     /**
      * Clear this WorkSource to be empty.
      */
diff --git a/services/java/com/android/server/wifi/WifiService.java b/services/java/com/android/server/wifi/WifiService.java
index 46f100e7722e4..5a24ebb4cb1f7 100644
--- a/services/java/com/android/server/wifi/WifiService.java
+++ b/services/java/com/android/server/wifi/WifiService.java
@@ -342,6 +342,9 @@ public final class WifiService extends IWifiManager.Stub {
         enforceChangePermission();
         if (workSource != null) {
             enforceWorkSourcePermission();
+            // WifiManager currently doesn't use names, so need to clear names out of the
+            // supplied WorkSource to allow future WorkSource combining.
+            workSource.clearNames();
         }
         mWifiStateMachine.startScan(Binder.getCallingUid(), workSource);
     }