diff --git a/cmake/ba-download.cmake b/cmake/ba-download.cmake
index c3e2dc46f..967a7c87e 100644
--- a/cmake/ba-download.cmake
+++ b/cmake/ba-download.cmake
@@ -9,6 +9,8 @@ function(ba_download target repo version)
     set(arch "aarch64")
   elseif (CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "AMD64")
     set(arch "x86_64")
+  elseif (CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "ARM64")
+    set(arch "aarch64")
   else()
     set(arch "UNKNOWN_ARCH")
     message(WARNING "Unsupported architecture ${CMAKE_HOST_SYSTEM_PROCESSOR} for ${target}")