diff --git a/modules/highgui/src/cap_qtkit.mm b/modules/highgui/src/cap_qtkit.mm
index 207f01b525..c7afffa075 100644
--- a/modules/highgui/src/cap_qtkit.mm
+++ b/modules/highgui/src/cap_qtkit.mm
@@ -277,8 +277,11 @@ bool CvCaptureCAM::grabFrame(double timeOut) {
     double sleepTime = 0.005;
     double total = 0;
 
-    while (![capture updateImage] && (total += sleepTime)<=timeOut)
-        usleep((int)(sleepTime*1000));
+    NSDate *loopUntil = [NSDate dateWithTimeIntervalSinceNow:sleepTime];
+    while (![capture updateImage] && (total += sleepTime)<=timeOut &&
+           [[NSRunLoop currentRunLoop] runMode: NSDefaultRunLoopMode
+                                    beforeDate:loopUntil])
+        loopUntil = [NSDate dateWithTimeIntervalSinceNow:sleepTime];
 
     [localpool drain];