diff --git a/vChewing.xcodeproj/project.pbxproj b/vChewing.xcodeproj/project.pbxproj
index 2f88d7fb..8d4fc221 100644
--- a/vChewing.xcodeproj/project.pbxproj
+++ b/vChewing.xcodeproj/project.pbxproj
@@ -1651,6 +1651,7 @@
 				DEAD_CODE_STRIPPING = YES;
 				DEVELOPMENT_ASSET_PATHS = "";
 				DEVELOPMENT_TEAM = "";
+				ENABLE_TESTABILITY = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_ENABLE_OBJC_EXCEPTIONS = YES;
@@ -1720,6 +1721,7 @@
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				DEVELOPMENT_ASSET_PATHS = "";
 				DEVELOPMENT_TEAM = "";
+				ENABLE_TESTABILITY = YES;
 				GCC_C_LANGUAGE_STANDARD = gnu99;
 				GCC_ENABLE_OBJC_EXCEPTIONS = YES;
 				GCC_OPTIMIZATION_LEVEL = z;