diff --git a/AsyncDisplayKit.xcodeproj/project.pbxproj b/AsyncDisplayKit.xcodeproj/project.pbxproj
index e6a8490473..6c4132aa8d 100644
--- a/AsyncDisplayKit.xcodeproj/project.pbxproj
+++ b/AsyncDisplayKit.xcodeproj/project.pbxproj
@@ -230,7 +230,7 @@
 		AC47D9451B3BB41900AAEE9D /* ASRelativeSize.h in Headers */ = {isa = PBXBuildFile; fileRef = AC47D9431B3BB41900AAEE9D /* ASRelativeSize.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		AC47D9461B3BB41900AAEE9D /* ASRelativeSize.mm in Sources */ = {isa = PBXBuildFile; fileRef = AC47D9441B3BB41900AAEE9D /* ASRelativeSize.mm */; };
 		AC6456091B0A335000CF11B8 /* ASCellNode.m in Sources */ = {isa = PBXBuildFile; fileRef = AC6456071B0A335000CF11B8 /* ASCellNode.m */; };
-		ACC945A91BA9E7A0005E1FB8 /* ASViewController.h in Headers */ = {isa = PBXBuildFile; fileRef = ACC945A81BA9E7A0005E1FB8 /* ASViewController.h */; };
+		ACC945A91BA9E7A0005E1FB8 /* ASViewController.h in Headers */ = {isa = PBXBuildFile; fileRef = ACC945A81BA9E7A0005E1FB8 /* ASViewController.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		ACC945AB1BA9E7C1005E1FB8 /* ASViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = ACC945AA1BA9E7C1005E1FB8 /* ASViewController.m */; };
 		ACF6ED1A1B17843500DA7C62 /* ASBackgroundLayoutSpec.h in Headers */ = {isa = PBXBuildFile; fileRef = ACF6ED011B17843500DA7C62 /* ASBackgroundLayoutSpec.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		ACF6ED1B1B17843500DA7C62 /* ASBackgroundLayoutSpec.mm in Sources */ = {isa = PBXBuildFile; fileRef = ACF6ED021B17843500DA7C62 /* ASBackgroundLayoutSpec.mm */; };
diff --git a/AsyncDisplayKit/ASViewController.h b/AsyncDisplayKit/ASViewController.h
index 7be26d5916..a00cebd90d 100644
--- a/AsyncDisplayKit/ASViewController.h
+++ b/AsyncDisplayKit/ASViewController.h
@@ -7,12 +7,12 @@
 //
 
 #import <UIKit/UIKit.h>
-#import <AsyncDisplayKit/AsyncDisplayKit.h>
+#import <AsyncDisplayKit/ASDisplayNode.h>
 
 @interface ASViewController : UIViewController
 
-@property (nonatomic, strong, readonly) ASDisplayNode *node;
+@property (nonatomic, strong, readonly, nonnull) ASDisplayNode *node;
 
-- (instancetype)initWithNode:(ASDisplayNode *)node;
+- (nullable instancetype)initWithNode:(nonnull ASDisplayNode *)node;
 
-@end
\ No newline at end of file
+@end
diff --git a/AsyncDisplayKit/ASViewController.m b/AsyncDisplayKit/ASViewController.m
index 2a9f555178..77395356f2 100644
--- a/AsyncDisplayKit/ASViewController.m
+++ b/AsyncDisplayKit/ASViewController.m
@@ -18,7 +18,6 @@
     return nil;
   }
   
-  ASDisplayNodeAssertNotNil(node, @"Node must not be nil");
   ASDisplayNodeAssertTrue(!node.layerBacked);
   _node = node;