diff --git a/XCTest.xcodeproj/project.pbxproj b/XCTest.xcodeproj/project.pbxproj
index 003f82d..e96690b 100644
--- a/XCTest.xcodeproj/project.pbxproj
+++ b/XCTest.xcodeproj/project.pbxproj
@@ -503,6 +503,7 @@
 				PRODUCT_BUNDLE_PACKAGE_TYPE = FMWK;
 				SKIP_INSTALL = YES;
 				SUPPORTED_PLATFORMS = "appletvos appletvsimulator iphoneos iphonesimulator macosx watchos watchsimulator";
+				SWIFT_INDEX_STORE_ENABLE = NO;
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
 				SWIFT_VERSION = 4.0;
 				TARGETED_DEVICE_FAMILY = "1,2,3,4";
@@ -529,6 +530,7 @@
 				PRODUCT_BUNDLE_PACKAGE_TYPE = FMWK;
 				SKIP_INSTALL = YES;
 				SUPPORTED_PLATFORMS = "appletvos appletvsimulator iphoneos iphonesimulator macosx watchos watchsimulator";
+				SWIFT_INDEX_STORE_ENABLE = NO;
 				SWIFT_SWIFT3_OBJC_INFERENCE = Off;
 				SWIFT_VERSION = 4.0;
 				TARGETED_DEVICE_FAMILY = "1,2,3,4";