diff --git a/tools/buildman/toolchain.py b/tools/buildman/toolchain.py
index 4f39bfd..89c54d6 100644
--- a/tools/buildman/toolchain.py
+++ b/tools/buildman/toolchain.py
@@ -487,6 +487,8 @@
                 URL containing this toolchain, if avaialble, else None
         """
         arch = command.OutputOneLine('uname', '-m')
+        if arch == 'aarch64':
+            arch = 'arm64'
         base = 'https://www.kernel.org/pub/tools/crosstool/files/bin'
         versions = ['7.3.0', '6.4.0', '4.9.4']
         links = []