diff --git a/MapboxMobileEvents.xcodeproj/project.pbxproj b/MapboxMobileEvents.xcodeproj/project.pbxproj
index 1572417e..dbc4fb94 100644
--- a/MapboxMobileEvents.xcodeproj/project.pbxproj
+++ b/MapboxMobileEvents.xcodeproj/project.pbxproj
@@ -1019,6 +1019,7 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				LLVM_LTO = YES;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				OTHER_CFLAGS = "";
@@ -1075,6 +1076,7 @@
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				LLVM_LTO = YES;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				OTHER_CFLAGS = "";
 				SDKROOT = iphoneos;