diff --git a/desmume/src/cocoa/DeSmuME (XCode 4).xcodeproj/project.pbxproj b/desmume/src/cocoa/DeSmuME (XCode 4).xcodeproj/project.pbxproj
index 88447e939..e3a6f69e4 100644
--- a/desmume/src/cocoa/DeSmuME (XCode 4).xcodeproj/project.pbxproj	
+++ b/desmume/src/cocoa/DeSmuME (XCode 4).xcodeproj/project.pbxproj	
@@ -2676,6 +2676,7 @@
 				);
 				GCC_PREFIX_HEADER = openemu/DeSmuME_Prefix_OpenEmu.pch;
 				INFOPLIST_FILE = "openemu/Info (OpenEmu Plug-in).plist";
+				LLVM_LTO = YES;
 				MACOSX_DEPLOYMENT_TARGET = 10.7;
 				PRODUCT_NAME = DeSmuME;
 				WRAPPER_EXTENSION = oecoreplugin;
@@ -2696,6 +2697,7 @@
 					NDEBUG,
 					PUBLIC_RELEASE,
 				);
+				LLVM_LTO = YES;
 				MACOSX_DEPLOYMENT_TARGET = 10.5;
 			};
 			name = Release;