diff --git a/nsd/contrib/install.sh b/nsd/contrib/install.sh
index 2a11e9e..0276506 100755
--- a/nsd/contrib/install.sh
+++ b/nsd/contrib/install.sh
@@ -209,6 +209,7 @@ xtensor_blas() {
 xtensor_python() {
 
   cmakeargs=("-DCMAKE_INSTALL_PREFIX=${INSTALL_PREFIX}")
+  cmakeargs+=("-DPYTHON_EXECUTABLE:FILEPATH=`which python3`")
   cmakeargs+=("-DCMAKE_BUILD_TYPE=Release")
   cmake_install sudo \
     ${XTENSOR_PYTHON_ORG:-xtensor-stack} xtensor-python \