diff --git a/AWSIoT/Internal/AWSIoTMQTTClient.m b/AWSIoT/Internal/AWSIoTMQTTClient.m
index fb20ac2ac91..192edfc5289 100644
--- a/AWSIoT/Internal/AWSIoTMQTTClient.m
+++ b/AWSIoT/Internal/AWSIoTMQTTClient.m
@@ -79,7 +79,6 @@ @interface AWSIoTMQTTClient() <AWSSRWebSocketDelegate, NSStreamDelegate, AWSMQTT
 
 @property (atomic, assign) BOOL runLoopShouldContinue;
 
-@property (strong,atomic) dispatch_semaphore_t timerSemaphore;
 @property (strong,atomic) dispatch_queue_t timerQueue;
 
 @end
@@ -107,7 +106,6 @@ - (instancetype)init {
         _webSocket = nil;
         _userDidIssueConnect = NO;
         _userDidIssueDisconnect = NO;
-        _timerSemaphore = dispatch_semaphore_create(1);
         _timerQueue = dispatch_queue_create("com.amazon.aws.iot.timer-queue", DISPATCH_QUEUE_SERIAL);
         _streamsThread = nil;
     }