diff --git a/xcode/common-debug.xcconfig b/xcode/common-debug.xcconfig
index 09cccd2eac..09653abbef 100644
--- a/xcode/common-debug.xcconfig
+++ b/xcode/common-debug.xcconfig
@@ -7,5 +7,5 @@ GCC_OPTIMIZATION_LEVEL = 0
 GCC_PREPROCESSOR_DEFINITIONS = $(inherited) DEBUG _DEBUG HAVE_PTHREAD
 GCC_UNROLL_LOOPS = NO
 MTL_ENABLE_DEBUG_INFO = INCLUDE_SOURCE
-OTHER_SWIFT_FLAGS = -Xfrontend -warn-long-function-bodies=400 -Xfrontend -warn-long-expression-type-checking=150 -DDEBUG
+OTHER_SWIFT_FLAGS = -DDEBUG
 SWIFT_OPTIMIZATION_LEVEL = -Onone