diff --git a/src/bonsai/Makefile b/src/bonsai/Makefile
index 8933f14290..ecc787c061 100644
--- a/src/bonsai/Makefile
+++ b/src/bonsai/Makefile
@@ -16,6 +16,7 @@
 # You should have received a copy of the GNU General Public License
 # along with Bonsai.  If not, see <http://www.gnu.org/licenses/>.
 
+SHELL := sh
 PYTHON:=python3.11
 PIP:=pip3.11
 PATCH:=patch