diff --git a/ShellB3/shallbethree.sh b/ShellB3/shallbethree.sh
index 9d814e40a02cfc6ebfb2967de1d04152d006842a..a658b545983c52093bc94d7cf06dbd60d133a928 100755
--- a/ShellB3/shallbethree.sh
+++ b/ShellB3/shallbethree.sh
@@ -4734,7 +4734,11 @@ diff -ru setup.py setup.py
            # Snappy is disabled by default
            '-DDEACTIVATE_SNAPPY:BOOL=%s' % cmake_bool(not int(os.environ.get('INCLUDE_SNAPPY', '0'))),
 PATCH
+  if isDarwin && isARM ; then
+  CANWHEEL=NO DISABLE_BLOSC_AVX2=YESS _setup_build_install blosc src/optional/blosc-${PYBLOSCVER}.tar.gz blosc-${PYBLOSCVER}
+  else
   DISABLE_BLOSC_AVX2=YESS _setup_build_install blosc src/optional/blosc-${PYBLOSCVER}.tar.gz blosc-${PYBLOSCVER}
+  fi
 
   reid $( find *ib* -name libblosc.* -type f )