diff --git a/SSPullToRefresh/SSPullToRefreshView.h b/SSPullToRefresh/SSPullToRefreshView.h
index 94e8449..8cd6e1b 100644
--- a/SSPullToRefresh/SSPullToRefreshView.h
+++ b/SSPullToRefresh/SSPullToRefreshView.h
@@ -82,6 +82,12 @@ typedef NS_ENUM(NSUInteger, SSPullToRefreshViewStyle) {
  */
 @property (nonatomic, assign) UIEdgeInsets defaultContentInset;
 
+/**
+ Safe area of scroll view.
+ Since iOS11 views have safeAreaInsets `scrollView` `contentOffset` is dependent upon the safe areas. This property is used when calculating current pull state.
+ */
+@property (nonatomic) UIEdgeInsets defaultSafeArea;
+
 /**
  The height of the fully expanded content view. The default is `70.0`.
 
diff --git a/SSPullToRefresh/SSPullToRefreshView.m b/SSPullToRefresh/SSPullToRefreshView.m
index 24a9cb0..51d950b 100644
--- a/SSPullToRefresh/SSPullToRefreshView.m
+++ b/SSPullToRefresh/SSPullToRefreshView.m
@@ -30,6 +30,7 @@ @implementation SSPullToRefreshView
 @synthesize topInset = _topInset;
 @synthesize animationSemaphore = _animationSemaphore;
 @synthesize style = _style;
+@synthesize defaultSafeArea = _defaultSafeArea;
 
 
 #pragma mark - Accessors
@@ -362,7 +363,7 @@ - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(N
 	}
     
 	// Get the offset out of the change notification
-	CGFloat y = [[change objectForKey:NSKeyValueChangeNewKey] CGPointValue].y + self.defaultContentInset.top;
+   CGFloat y = [[change objectForKey:NSKeyValueChangeNewKey] CGPointValue].y + self.defaultContentInset.top + self.defaultSafeArea.top;
 
 	// Scroll view is dragging
 	if (self.scrollView.isDragging) {