diff --git a/stdlib/public/Concurrency/CMakeLists.txt b/stdlib/public/Concurrency/CMakeLists.txt
index 2ed90375c7491..eea19c0661341 100644
--- a/stdlib/public/Concurrency/CMakeLists.txt
+++ b/stdlib/public/Concurrency/CMakeLists.txt
@@ -49,10 +49,6 @@ add_swift_target_library(swift_Concurrency ${SWIFT_STDLIB_LIBRARY_BUILD_TYPES} I
   Mutex.cpp
   ${swift_concurrency_objc_sources}
 
-  SWIFT_MODULE_DEPENDS_OSX Darwin
-  SWIFT_MODULE_DEPENDS_IOS Darwin
-  SWIFT_MODULE_DEPENDS_TVOS Darwin
-  SWIFT_MODULE_DEPENDS_WATCHOS Darwin
   SWIFT_MODULE_DEPENDS_LINUX Glibc
   SWIFT_MODULE_DEPENDS_FREEBSD Glibc
   SWIFT_MODULE_DEPENDS_OPENBSD Glibc