diff --git a/systems/mac-arm/config-command-homebrew b/systems/mac-arm/config-command-homebrew
index a35ea0cf..e1e46a50 100644
--- a/systems/mac-arm/config-command-homebrew
+++ b/systems/mac-arm/config-command-homebrew
@@ -14,7 +14,7 @@ CXX=mpicxx ../../configure \
     --with-gmp="${GMP}" \
     --with-mpfr="${MPFR}" \
     --with-fftw="${FFTW}" \
-    --disable-Sp \
+    --enable-Sp=no \
     --disable-fermion-reps \
     --disable-gparity \
     --disable-debug