diff --git a/Carthage/TTTAttributedLabel.xcodeproj/project.pbxproj b/Carthage/TTTAttributedLabel.xcodeproj/project.pbxproj
index 4a2f3073..bc1242a5 100644
--- a/Carthage/TTTAttributedLabel.xcodeproj/project.pbxproj
+++ b/Carthage/TTTAttributedLabel.xcodeproj/project.pbxproj
@@ -331,6 +331,7 @@
 		A52E643E1B14C0BF002709D4 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				APPLICATION_EXTENSION_API_ONLY = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
@@ -346,6 +347,7 @@
 		A52E643F1B14C0BF002709D4 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				APPLICATION_EXTENSION_API_ONLY = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;