diff --git a/Source/Layout/ASDimension.h b/Source/Layout/ASDimension.h
index 92257efc3..851f519e3 100644
--- a/Source/Layout/ASDimension.h
+++ b/Source/Layout/ASDimension.h
@@ -16,8 +16,7 @@
 //
 
 #pragma once
-#import <Foundation/Foundation.h>
-#import <CoreGraphics/CoreGraphics.h>
+#import <UIKit/UIGeometry.h>
 #import <AsyncDisplayKit/ASAvailability.h>
 #import <AsyncDisplayKit/ASBaseDefines.h>
 #import <AsyncDisplayKit/ASAssert.h>
diff --git a/Source/Layout/ASDimension.mm b/Source/Layout/ASDimension.mm
index 5e42255ab..9a938c0c3 100644
--- a/Source/Layout/ASDimension.mm
+++ b/Source/Layout/ASDimension.mm
@@ -17,8 +17,6 @@
 
 #import <AsyncDisplayKit/ASDimension.h>
 
-#import <UIKit/UIGeometry.h>
-
 #import <AsyncDisplayKit/CoreGraphics+ASConvenience.h>
 
 #import <AsyncDisplayKit/ASAssert.h>