diff --git a/SwiftyXMLParser.xcodeproj/project.pbxproj b/SwiftyXMLParser.xcodeproj/project.pbxproj
index c67e37a..79abebf 100755
--- a/SwiftyXMLParser.xcodeproj/project.pbxproj
+++ b/SwiftyXMLParser.xcodeproj/project.pbxproj
@@ -286,6 +286,7 @@
 			baseConfigurationReference = 81B640ED1FC77E6400BE1AB5 /* Config.xcconfig */;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				APPLICATION_EXTENSION_API_ONLY = YES;
 				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
@@ -348,6 +349,7 @@
 			baseConfigurationReference = 81B640ED1FC77E6400BE1AB5 /* Config.xcconfig */;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				APPLICATION_EXTENSION_API_ONLY = YES;
 				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";