diff --git a/FastImageCache/FastImageCache.xcodeproj/project.pbxproj b/FastImageCache/FastImageCache.xcodeproj/project.pbxproj
index 88df314..d889c59 100644
--- a/FastImageCache/FastImageCache.xcodeproj/project.pbxproj
+++ b/FastImageCache/FastImageCache.xcodeproj/project.pbxproj
@@ -528,6 +528,7 @@
 		B2E5677F1B316D5800906840 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				APPLICATION_EXTENSION_API_ONLY = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
@@ -544,6 +545,7 @@
 		B2E567801B316D5800906840 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				APPLICATION_EXTENSION_API_ONLY = YES;
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;