diff --git a/SwiftGif.xcodeproj/project.pbxproj b/SwiftGif.xcodeproj/project.pbxproj
index d23edad..6bf2b9a 100644
--- a/SwiftGif.xcodeproj/project.pbxproj
+++ b/SwiftGif.xcodeproj/project.pbxproj
@@ -256,6 +256,7 @@
 			developmentRegion = English;
 			hasScannedForEncodings = 0;
 			knownRegions = (
+				English,
 				en,
 			);
 			mainGroup = 14A7642F194EFBB800A74B1F;
@@ -516,6 +517,7 @@
 		14FF87E91D6B7BAA00FB208A /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				APPLICATION_EXTENSION_API_ONLY = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_SUSPICIOUS_MOVES = YES;
@@ -547,6 +549,7 @@
 		14FF87EA1D6B7BAA00FB208A /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				APPLICATION_EXTENSION_API_ONLY = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_SUSPICIOUS_MOVES = YES;