diff --git a/Foundation.xcodeproj/project.pbxproj b/Foundation.xcodeproj/project.pbxproj
index e781b7afb2..c3cfc65710 100644
--- a/Foundation.xcodeproj/project.pbxproj
+++ b/Foundation.xcodeproj/project.pbxproj
@@ -4315,6 +4315,7 @@
 			buildSettings = {
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CODE_SIGN_IDENTITY = "-";
 				HEADER_SEARCH_PATHS = "";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(TOOLCHAIN_DIR)/usr/lib/swift/macosx",
@@ -4333,6 +4334,7 @@
 			buildSettings = {
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CODE_SIGN_IDENTITY = "-";
 				HEADER_SEARCH_PATHS = "";
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(TOOLCHAIN_DIR)/usr/lib/swift/macosx",
@@ -4356,6 +4358,7 @@
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CODE_SIGN_IDENTITY = "-";
 				CODE_SIGN_STYLE = Automatic;
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				HEADER_SEARCH_PATHS = "";
@@ -4379,6 +4382,7 @@
 				CLANG_ENABLE_OBJC_WEAK = YES;
 				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
 				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CODE_SIGN_IDENTITY = "-";
 				CODE_SIGN_STYLE = Automatic;
 				GCC_C_LANGUAGE_STANDARD = gnu11;
 				HEADER_SEARCH_PATHS = "";