diff --git a/configure.ac b/configure.ac
index d4dbbf81fb..1b14816400 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2390,6 +2390,9 @@ AS_CASE([$rb_cv_coroutine], [yes|''], [
         [x*64-darwin*], [
             rb_cv_coroutine=amd64
         ],
+        [arm64-darwin*], [
+            rb_cv_coroutine=arm64
+        ],
         [x*64-linux*], [
             AS_CASE(["$ac_cv_sizeof_voidp"],
                 [8], [ rb_cv_coroutine=amd64 ],