diff --git a/Sources/OpenSwiftUIShims/include/OpenSwiftUITargetConditionals.h b/Sources/OpenSwiftUIShims/include/OpenSwiftUITargetConditionals.h
index fb194c19..1f0c57e2 100644
--- a/Sources/OpenSwiftUIShims/include/OpenSwiftUITargetConditionals.h
+++ b/Sources/OpenSwiftUIShims/include/OpenSwiftUITargetConditionals.h
@@ -134,9 +134,9 @@
 #error unknown operating system
 #endif
 
-#define OPENSWIFTUI_TARGET_OS_WIN32        TARGET_OS_WINDOWS
-#define OPENSWIFTUI_TARGET_OS_MAC          TARGET_OS_DARWIN
-#define OPENSWIFTUI_TARGET_OS_OSX          TARGET_OS_DARWIN
+#define OPENSWIFTUI_TARGET_OS_WIN32        OPENSWIFTUI_TARGET_OS_WINDOWS
+#define OPENSWIFTUI_TARGET_OS_MAC          OPENSWIFTUI_TARGET_OS_DARWIN
+#define OPENSWIFTUI_TARGET_OS_OSX          OPENSWIFTUI_TARGET_OS_DARWIN
 
 // iOS, watchOS, and tvOS are not supported
 #define OPENSWIFTUI_TARGET_OS_IPHONE        0