diff --git a/AsyncDisplayKit/ASVideoNode.h b/AsyncDisplayKit/ASVideoNode.h
index 98c7754d..d061accb 100644
--- a/AsyncDisplayKit/ASVideoNode.h
+++ b/AsyncDisplayKit/ASVideoNode.h
@@ -55,7 +55,7 @@ NS_ASSUME_NONNULL_BEGIN
 @property (nonatomic, assign, readwrite) BOOL shouldAggressivelyRecoverFromStall;
 
 @property (nonatomic, assign, readonly) ASVideoNodePlayerState playerState;
-//! Defaults to 100
+//! Defaults to 1000
 @property (nonatomic, assign) int32_t periodicTimeObserverTimescale;
 
 //! Defaults to AVLayerVideoGravityResizeAspect
diff --git a/AsyncDisplayKit/ASVideoNode.mm b/AsyncDisplayKit/ASVideoNode.mm
index 89cb9fa5..6240ec55 100644
--- a/AsyncDisplayKit/ASVideoNode.mm
+++ b/AsyncDisplayKit/ASVideoNode.mm
@@ -224,7 +224,7 @@ static NSString * const kStatus = @"status";
 - (void)generatePlaceholderImage
 {
   ASVideoNode * __weak weakSelf = self;
-  AVAsset * __weak asset = self.asset;
+  AVAsset *asset = self.asset;
 
   [self imageAtTime:kCMTimeZero completionHandler:^(UIImage *image) {
     ASPerformBlockOnMainThread(^{