diff --git a/Telegram/ThirdParty/SPMediaKeyTap/SPMediaKeyTap.m b/Telegram/ThirdParty/SPMediaKeyTap/SPMediaKeyTap.m
index babd0ea02..b6ad273ad 100644
--- a/Telegram/ThirdParty/SPMediaKeyTap/SPMediaKeyTap.m
+++ b/Telegram/ThirdParty/SPMediaKeyTap/SPMediaKeyTap.m
@@ -77,7 +77,10 @@ static CGEventRef tapEventCallback(CGEventTapProxy proxy, CGEventType type, CGEv
 								  CGEventMaskBit(NX_SYSDEFINED),
 								  tapEventCallback,
 								  self);
-	assert(_eventPort != NULL);
+	if (!_eventPort) {
+		[self stopWatchingMediaKeys];
+		return;
+	}
 	
     _eventPortSource = CFMachPortCreateRunLoopSource(kCFAllocatorSystemDefault, _eventPort, 0);
 	assert(_eventPortSource != NULL);