diff --git a/src/win/util.c b/src/win/util.c
index a8c77103c..06fbefc4e 100644
--- a/src/win/util.c
+++ b/src/win/util.c
@@ -1712,6 +1712,9 @@ int uv_os_uname(uv_utsname_t* buffer) {
     case PROCESSOR_ARCHITECTURE_ARM:
       uv__strscpy(buffer->machine, "arm", sizeof(buffer->machine));
       break;
+    case PROCESSOR_ARCHITECTURE_ARM64:
+      uv__strscpy(buffer->machine, "arm64", sizeof(buffer->machine));
+      break;
     default:
       uv__strscpy(buffer->machine, "unknown", sizeof(buffer->machine));
       break;