diff --git a/src/coreclr/gc/gcpriv.h b/src/coreclr/gc/gcpriv.h
index 71dc19b9f0c676..2c178ca3665c2e 100644
--- a/src/coreclr/gc/gcpriv.h
+++ b/src/coreclr/gc/gcpriv.h
@@ -141,7 +141,7 @@ inline void FATAL_GC_ERROR()
 // This means any empty regions can be freely used for any generation. For
 // Server GC we will balance regions between heaps.
 // For now disable regions for StandAlone GC, NativeAOT and MacOS builds
-#if defined (HOST_64BIT) && !defined (BUILD_AS_STANDALONE) && !defined(__APPLE__)
+#if defined (HOST_64BIT) && !defined (BUILD_AS_STANDALONE)
 #define USE_REGIONS
 #endif //HOST_64BIT && BUILD_AS_STANDALONE