diff --git a/meta/classes-recipe/siteinfo.bbclass b/meta/classes-recipe/siteinfo.bbclass
index 05253ae90d..68aefb8eda 100644
--- a/meta/classes-recipe/siteinfo.bbclass
+++ b/meta/classes-recipe/siteinfo.bbclass
@@ -73,6 +73,8 @@ def siteinfo_data_for_machine(arch, os, d):
     osinfo = {
         "darwin": "common-darwin",
         "darwin9": "common-darwin",
+        "darwin19": "common-darwin",
+        "darwin21": "common-darwin",
         "linux": "common-linux common-glibc",
         "linux-gnu": "common-linux common-glibc",
         "linux-gnu_ilp32": "common-linux common-glibc",
@@ -130,6 +132,8 @@ def siteinfo_data_for_machine(arch, os, d):
         "x86_64-cygwin": "bit-64",
         "x86_64-darwin": "bit-64",
         "x86_64-darwin9": "bit-64",
+        "x86_64-darwin19": "bit-64",
+        "x86_64-darwin21": "bit-64",
         "x86_64-linux": "bit-64",
         "x86_64-linux-musl": "x86_64-linux bit-64",
         "x86_64-linux-muslx32": "bit-32 ix86-common x32-linux",