diff --git a/ParseLiveQuery/src/main/java/com/parse/livequery/ConnectClientOperation.java b/ParseLiveQuery/src/main/java/com/parse/livequery/ConnectClientOperation.java
index 83f427c..e7bbdbb 100644
--- a/ParseLiveQuery/src/main/java/com/parse/livequery/ConnectClientOperation.java
+++ b/ParseLiveQuery/src/main/java/com/parse/livequery/ConnectClientOperation.java
@@ -7,10 +7,12 @@ class ConnectClientOperation extends ClientOperation {
 
     private final String applicationId;
     private final String sessionToken;
+    private final String clientKey;
 
-    ConnectClientOperation(String applicationId, String sessionToken) {
+    ConnectClientOperation(String applicationId, String sessionToken, String clientKey) {
         this.applicationId = applicationId;
         this.sessionToken = sessionToken;
+        this.clientKey = clientKey;
     }
 
     @Override
@@ -19,6 +21,7 @@ JSONObject getJSONObjectRepresentation() throws JSONException {
         jsonObject.put("op", "connect");
         jsonObject.put("applicationId", applicationId);
         jsonObject.put("sessionToken", sessionToken);
+        jsonObject.put("clientKey", clientKey);
         return jsonObject;
     }
 }
diff --git a/ParseLiveQuery/src/main/java/com/parse/livequery/ParseLiveQueryClientImpl.java b/ParseLiveQuery/src/main/java/com/parse/livequery/ParseLiveQueryClientImpl.java
index ef7284b..5169aef 100644
--- a/ParseLiveQuery/src/main/java/com/parse/livequery/ParseLiveQueryClientImpl.java
+++ b/ParseLiveQuery/src/main/java/com/parse/livequery/ParseLiveQueryClientImpl.java
@@ -386,7 +386,7 @@ public void onOpen() {
                     @Override
                     public Task<Void> then(Task<String> task) throws Exception {
                         String sessionToken = task.getResult();
-                        return sendOperationAsync(new ConnectClientOperation(applicationId, sessionToken));
+                        return sendOperationAsync(new ConnectClientOperation(applicationId, sessionToken, clientKey));
                     }
                 }).continueWith(new Continuation<Void, Void>() {
                     public Void then(Task<Void> task) {
diff --git a/ParseLiveQuery/src/test/java/com/parse/TestParseLiveQueryClient.java b/ParseLiveQuery/src/test/java/com/parse/TestParseLiveQueryClient.java
index 2738d15..e805629 100644
--- a/ParseLiveQuery/src/test/java/com/parse/TestParseLiveQueryClient.java
+++ b/ParseLiveQuery/src/test/java/com/parse/TestParseLiveQueryClient.java
@@ -413,13 +413,42 @@ public void testSessionTokenSentOnSubscribe() {
 
     @Test
     public void testEmptySessionTokenOnSubscribe() {
-        when(mockUser.getSessionToken()).thenReturn("the token");
         when(webSocketClient.getState()).thenReturn(WebSocketClient.State.CONNECTED);
         parseLiveQueryClient.subscribe(ParseQuery.getQuery("Test"));
         verify(webSocketClient, times(1)).send(contains("\"op\":\"connect\""));
         verify(webSocketClient, times(1)).send(and(
                 contains("\"op\":\"subscribe\""),
-                contains("\"sessionToken\":\"the token\"")));
+                not(contains("\"sessionToken\":"))));
+    }
+
+    @Test
+    public void testClientKeySentOnConnect() throws Exception {
+        Parse.Configuration configuration = new Parse.Configuration.Builder(null)
+                .applicationId("1234")
+                .clientKey("1234")
+                .build();
+        ParsePlugins.reset();
+        ParsePlugins.initialize(null, configuration);
+
+        parseLiveQueryClient = ParseLiveQueryClient.Factory.getClient(new URI(""), new WebSocketClientFactory() {
+            @Override
+            public WebSocketClient createInstance(WebSocketClient.WebSocketClientCallback webSocketClientCallback, URI hostUrl) {
+                TestParseLiveQueryClient.this.webSocketClientCallback = webSocketClientCallback;
+                webSocketClient = mock(WebSocketClient.class);
+                return webSocketClient;
+            }
+        }, new ImmediateExecutor());
+
+        parseLiveQueryClient.reconnect();
+        webSocketClientCallback.onOpen();
+        verify(webSocketClient, times(1)).send(contains("\"clientKey\":\"1234\""));
+    }
+
+    @Test
+    public void testEmptyClientKeyOnConnect() {
+        parseLiveQueryClient.reconnect();
+        webSocketClientCallback.onOpen();
+        verify(webSocketClient, times(1)).send(not(contains("\"clientKey\":")));
     }
 
     @Test