diff --git a/AsyncDisplayKit.xcodeproj/project.pbxproj b/AsyncDisplayKit.xcodeproj/project.pbxproj
index a7d2732172..7d95d91c23 100644
--- a/AsyncDisplayKit.xcodeproj/project.pbxproj
+++ b/AsyncDisplayKit.xcodeproj/project.pbxproj
@@ -2234,6 +2234,7 @@
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_INSTRUMENT_PROGRAM_FLOW_ARCS = YES;
 				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_PREFIX_HEADER = "AsyncDisplayKit/AsyncDisplayKit-Prefix.pch";
 				GCC_PREPROCESSOR_DEFINITIONS = (
 					"DEBUG=1",
 					"$(inherited)",
@@ -2268,6 +2269,7 @@
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				GCC_INSTRUMENT_PROGRAM_FLOW_ARCS = YES;
 				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_PREFIX_HEADER = "AsyncDisplayKit/AsyncDisplayKit-Prefix.pch";
 				INFOPLIST_FILE = "$(SRCROOT)/AsyncDisplayKit-iOS/Info.plist";
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;