diff --git a/includes/rts/storage/GC.h b/includes/rts/storage/GC.h
index be9c13cdf4edb7acaff3a92c6cea019c701c181a..cfe48c24be0c5e9839f1c4f42260f29474178cff 100644
--- a/includes/rts/storage/GC.h
+++ b/includes/rts/storage/GC.h
@@ -199,7 +199,7 @@ typedef void* AdjustorExecutable;
 
 AdjustorWritable allocateExec(W_ len, AdjustorExecutable *exec_addr);
 void flushExec(W_ len, AdjustorExecutable exec_addr);
-#if (defined(arm_HOST_ARCH) || defined(aarch64_HOST_ARCH)) && (defined(ios_HOST_OS) || defined(darwin_HOST_OS))
+#if defined(darwin_HOST_OS)
 AdjustorWritable execToWritable(AdjustorExecutable exec);
 #endif