diff --git a/SwiftRuby.xcodeproj/project.pbxproj b/SwiftRuby.xcodeproj/project.pbxproj
index 774e398..4128aa5 100644
--- a/SwiftRuby.xcodeproj/project.pbxproj
+++ b/SwiftRuby.xcodeproj/project.pbxproj
@@ -338,6 +338,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				BUILD_LIBRARY_FOR_DISTRIBUTION = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
@@ -416,6 +417,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				BUILD_LIBRARY_FOR_DISTRIBUTION = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";