diff --git a/AsyncDisplayKit.xcodeproj/project.pbxproj b/AsyncDisplayKit.xcodeproj/project.pbxproj
index 495d95f8b5..a435eabbea 100644
--- a/AsyncDisplayKit.xcodeproj/project.pbxproj
+++ b/AsyncDisplayKit.xcodeproj/project.pbxproj
@@ -105,7 +105,6 @@
 		058D0A81195D05F900B7D73C /* ASThread.h in Headers */ = {isa = PBXBuildFile; fileRef = 058D0A12195D050800B7D73C /* ASThread.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		058D0A82195D060300B7D73C /* ASAssert.h in Headers */ = {isa = PBXBuildFile; fileRef = 058D0A43195D058D00B7D73C /* ASAssert.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		058D0A83195D060300B7D73C /* ASBaseDefines.h in Headers */ = {isa = PBXBuildFile; fileRef = 058D0A44195D058D00B7D73C /* ASBaseDefines.h */; settings = {ATTRIBUTES = (Public, ); }; };
-		058D0A84195D060300B7D73C /* ASDisplayNodeExtraIvars.h in Headers */ = {isa = PBXBuildFile; fileRef = 058D0A45195D058D00B7D73C /* ASDisplayNodeExtraIvars.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		05A6D05A19D0EB64002DD95E /* ASDealloc2MainObject.h in Headers */ = {isa = PBXBuildFile; fileRef = 05A6D05819D0EB64002DD95E /* ASDealloc2MainObject.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		05A6D05B19D0EB64002DD95E /* ASDealloc2MainObject.m in Sources */ = {isa = PBXBuildFile; fileRef = 05A6D05919D0EB64002DD95E /* ASDealloc2MainObject.m */; settings = {COMPILER_FLAGS = "-fno-objc-arc"; }; };
 		05EA6FE71AC0966E00E35788 /* ASSnapshotTestCase.mm in Sources */ = {isa = PBXBuildFile; fileRef = 05EA6FE61AC0966E00E35788 /* ASSnapshotTestCase.mm */; };
@@ -487,7 +486,6 @@
 		B35062571B010F070018CF92 /* ASAssert.h in Headers */ = {isa = PBXBuildFile; fileRef = 058D0A43195D058D00B7D73C /* ASAssert.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		B35062581B010F070018CF92 /* ASAvailability.h in Headers */ = {isa = PBXBuildFile; fileRef = 0516FA3A1A15563400B4EBED /* ASAvailability.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		B35062591B010F070018CF92 /* ASBaseDefines.h in Headers */ = {isa = PBXBuildFile; fileRef = 058D0A44195D058D00B7D73C /* ASBaseDefines.h */; settings = {ATTRIBUTES = (Public, ); }; };
-		B350625A1B010F070018CF92 /* ASDisplayNodeExtraIvars.h in Headers */ = {isa = PBXBuildFile; fileRef = 058D0A45195D058D00B7D73C /* ASDisplayNodeExtraIvars.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		B350625B1B010F070018CF92 /* ASEqualityHelpers.h in Headers */ = {isa = PBXBuildFile; fileRef = 1950C4481A3BB5C1005C8279 /* ASEqualityHelpers.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		B350625C1B010F070018CF92 /* ASLog.h in Headers */ = {isa = PBXBuildFile; fileRef = 0516FA3B1A15563400B4EBED /* ASLog.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		B350625D1B0111740018CF92 /* Photos.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 051943141A1575670030A7D0 /* Photos.framework */; };
@@ -690,7 +688,6 @@
 		058D0A37195D057000B7D73C /* ASTextNodeWordKernerTests.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = ASTextNodeWordKernerTests.mm; sourceTree = "<group>"; };
 		058D0A43195D058D00B7D73C /* ASAssert.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASAssert.h; sourceTree = "<group>"; };
 		058D0A44195D058D00B7D73C /* ASBaseDefines.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASBaseDefines.h; sourceTree = "<group>"; };
-		058D0A45195D058D00B7D73C /* ASDisplayNodeExtraIvars.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASDisplayNodeExtraIvars.h; sourceTree = "<group>"; };
 		05A6D05819D0EB64002DD95E /* ASDealloc2MainObject.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = ASDealloc2MainObject.h; path = ../Details/ASDealloc2MainObject.h; sourceTree = "<group>"; };
 		05A6D05919D0EB64002DD95E /* ASDealloc2MainObject.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = ASDealloc2MainObject.m; path = ../Details/ASDealloc2MainObject.m; sourceTree = "<group>"; };
 		05EA6FE61AC0966E00E35788 /* ASSnapshotTestCase.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = ASSnapshotTestCase.mm; sourceTree = "<group>"; };
@@ -1292,7 +1289,6 @@
 				058D0A43195D058D00B7D73C /* ASAssert.h */,
 				0516FA3A1A15563400B4EBED /* ASAvailability.h */,
 				058D0A44195D058D00B7D73C /* ASBaseDefines.h */,
-				058D0A45195D058D00B7D73C /* ASDisplayNodeExtraIvars.h */,
 				1950C4481A3BB5C1005C8279 /* ASEqualityHelpers.h */,
 				0516FA3B1A15563400B4EBED /* ASLog.h */,
 			);
@@ -1485,7 +1481,6 @@
 				DBC452DB1C5BF64600B16017 /* NSArray+Diffing.h in Headers */,
 				058D0A4C195D05CB00B7D73C /* ASDisplayNode+Subclasses.h in Headers */,
 				058D0A4A195D05CB00B7D73C /* ASDisplayNode.h in Headers */,
-				058D0A84195D060300B7D73C /* ASDisplayNodeExtraIvars.h in Headers */,
 				AC7A2C171BDE11DF0093FE1A /* ASTableViewInternal.h in Headers */,
 				058D0A4D195D05CB00B7D73C /* ASDisplayNodeExtras.h in Headers */,
 				68355B3B1CB57A5A001D4E68 /* ASImageContainerProtocolCategories.h in Headers */,
@@ -1636,7 +1631,6 @@
 				B350624F1B010EFD0018CF92 /* ASDisplayNode+DebugTiming.h in Headers */,
 				B35061FD1B010EFD0018CF92 /* ASDisplayNode+Subclasses.h in Headers */,
 				B35061FB1B010EFD0018CF92 /* ASDisplayNode.h in Headers */,
-				B350625A1B010F070018CF92 /* ASDisplayNodeExtraIvars.h in Headers */,
 				B35061FE1B010EFD0018CF92 /* ASDisplayNodeExtras.h in Headers */,
 				B35062521B010EFD0018CF92 /* ASDisplayNodeInternal.h in Headers */,
 				B35062001B010EFD0018CF92 /* ASEditableTextNode.h in Headers */,
diff --git a/AsyncDisplayKit/AsyncDisplayKit.h b/AsyncDisplayKit/AsyncDisplayKit.h
index e686a85f77..ad24302d62 100644
--- a/AsyncDisplayKit/AsyncDisplayKit.h
+++ b/AsyncDisplayKit/AsyncDisplayKit.h
@@ -65,7 +65,6 @@
 #import <AsyncDisplayKit/ASContextTransitioning.h>
 #import <AsyncDisplayKit/ASControlNode+Subclasses.h>
 #import <AsyncDisplayKit/ASDisplayNode+Subclasses.h>
-#import <AsyncDisplayKit/ASDisplayNodeExtraIvars.h>
 #import <AsyncDisplayKit/ASEqualityHelpers.h>
 #import <AsyncDisplayKit/ASHighlightOverlayLayer.h>
 #import <AsyncDisplayKit/ASIndexPath.h>
diff --git a/AsyncDisplayKit/Private/ASDisplayNode+FrameworkPrivate.h b/AsyncDisplayKit/Private/ASDisplayNode+FrameworkPrivate.h
index 07cb3440b8..565593d37f 100644
--- a/AsyncDisplayKit/Private/ASDisplayNode+FrameworkPrivate.h
+++ b/AsyncDisplayKit/Private/ASDisplayNode+FrameworkPrivate.h
@@ -12,7 +12,6 @@
 //
 
 #import "_AS-objc-internal.h"
-#import "ASDisplayNodeExtraIvars.h"
 #import "ASDisplayNode.h"
 #import "ASSentinel.h"
 #import "ASThread.h"
diff --git a/AsyncDisplayKit/Private/ASDisplayNodeInternal.h b/AsyncDisplayKit/Private/ASDisplayNodeInternal.h
index 878d921eec..32c209f51c 100644
--- a/AsyncDisplayKit/Private/ASDisplayNodeInternal.h
+++ b/AsyncDisplayKit/Private/ASDisplayNodeInternal.h
@@ -12,7 +12,6 @@
 //
 
 #import "_AS-objc-internal.h"
-#import "ASDisplayNodeExtraIvars.h"
 #import "ASDisplayNode.h"
 #import "ASSentinel.h"
 #import "ASThread.h"
@@ -124,8 +123,6 @@ FOUNDATION_EXPORT NSString * const ASRenderingEngineDidDisplayNodesScheduledBefo
   // keeps track of nodes/subnodes that have not finished display, used with placeholders
   NSMutableSet *_pendingDisplayNodes;
 
-  ASDisplayNodeExtraIvars _extra;
-  
   ASDisplayNodeContextModifier _willDisplayNodeContentWithRenderingContext;
   ASDisplayNodeContextModifier _didDisplayNodeContentWithRenderingContext;
 
diff --git a/Base/ASDisplayNodeExtraIvars.h b/Base/ASDisplayNodeExtraIvars.h
deleted file mode 100644
index c55fc47c65..0000000000
--- a/Base/ASDisplayNodeExtraIvars.h
+++ /dev/null
@@ -1,10 +0,0 @@
-/* Copyright (c) 2014-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-typedef struct _ASDisplayNodeExtraIvars {
-} ASDisplayNodeExtraIvars;