diff --git a/Classes/MGSplitViewController.m b/Classes/MGSplitViewController.m
index 61b30a6..a66dee5 100644
--- a/Classes/MGSplitViewController.m
+++ b/Classes/MGSplitViewController.m
@@ -231,6 +231,11 @@ - (CGSize)splitViewSizeForOrientation:(UIInterfaceOrientation)theOrientation
 	// Little bit ugly looking, but it'll still work even if they change the status bar height in future.
 	float statusBarHeight = MAX((fullScreenRect.size.width - appFrame.size.width), (fullScreenRect.size.height - appFrame.size.height));
 	
+	float navigationBarHeight = 0;
+	if ((self.navigationController)&&(!self.navigationController.navigationBarHidden)) {
+		navigationBarHeight = self.navigationController.navigationBar.frame.size.height;
+	}
+	
 	// Initially assume portrait orientation.
 	float width = fullScreenRect.size.width;
 	float height = fullScreenRect.size.height;
@@ -243,6 +248,7 @@ - (CGSize)splitViewSizeForOrientation:(UIInterfaceOrientation)theOrientation
 	
 	// Account for status bar, which always subtracts from the height (since it's always at the top of the screen).
 	height -= statusBarHeight;
+	height -= navigationBarHeight;
 	
 	return CGSizeMake(width, height);
 }