diff --git a/.travis/init-build-linux.sh b/.travis/init-build-linux.sh
index a5e5f16..ae5f0db 100644
--- a/.travis/init-build-linux.sh
+++ b/.travis/init-build-linux.sh
@@ -78,12 +78,14 @@ function build_menoh() {
         docker_exec_script \
             "${PROJ_DIR}/scripts/build-menoh.sh" \
                 --build-type Release \
-                --source-dir "${PROJ_DIR}"
+                --source-dir "${PROJ_DIR}" \
+                --python-executable python3
     else
         docker_exec_script \
             "${PROJ_DIR}/scripts/build-menoh.sh" \
                 --build-type Release \
                 --source-dir "${PROJ_DIR}" \
+                --python-executable python3 \
                 --link-static-libgcc ON \
                 --link-static-libstdcxx ON \
                 --link-static-libprotobuf ON
diff --git a/.travis/init-build-osx.sh b/.travis/init-build-osx.sh
index c1228d8..afe593a 100644
--- a/.travis/init-build-osx.sh
+++ b/.travis/init-build-osx.sh
@@ -17,12 +17,14 @@ function build_menoh() {
     if [ "${LINK_STATIC}" != "true" ]; then
         bash -ex "${PROJ_DIR}/scripts/build-menoh.sh" \
             --build-type Release \
-            --source-dir "${PROJ_DIR}"
+            --source-dir "${PROJ_DIR}" \
+            --python-executable python
     else
         # Does not set --link-static-libgcc and --link-static-libstdcxx in macOS
         bash -ex "${PROJ_DIR}/scripts/build-menoh.sh" \
             --build-type Release \
             --source-dir "${PROJ_DIR}" \
+            --python-executable python \
             --link-static-libprotobuf ON
     fi
 }
diff --git a/scripts/build-menoh.sh b/scripts/build-menoh.sh
index 38c4fed..5184c4e 100755
--- a/scripts/build-menoh.sh
+++ b/scripts/build-menoh.sh
@@ -29,6 +29,10 @@ while [[ $# != 0 ]]; do
             readonly ARG_MKLDNN_DIR="$2"
             shift 2
             ;;
+        --python-executable)
+            ARG_PYTHON_EXECUTABLE="$2"
+            shift 2
+            ;;
         --link-static-libgcc)
             readonly ARG_LINK_STATIC_LIBGCC="$2"
             shift 2
@@ -63,6 +67,7 @@ if [ -n "${ARG_MKLDNN_DIR}" ]; then
     readonly OPT_MKLDNN_LIBRARY=-DMKLDNN_LIBRARY=${ARG_MKLDNN_DIR}/lib/libmkldnn.so
 fi
 
+test -n "${ARG_PYTHON_EXECUTABLE}" || readonly ARG_PYTHON_EXECUTABLE=python
 test -n "${ARG_LINK_STATIC_LIBGCC}" || readonly ARG_LINK_STATIC_LIBGCC='OFF'
 test -n "${ARG_LINK_STATIC_LIBSTDCXX}" || readonly ARG_LINK_STATIC_LIBSTDCXX='OFF'
 test -n "${ARG_LINK_STATIC_LIBPROTOBUF}" || readonly ARG_LINK_STATIC_LIBPROTOBUF='OFF'
@@ -77,6 +82,7 @@ cmake \
     "-DCMAKE_INSTALL_PREFIX=${ARG_INSTALL_DIR}" \
     "${OPT_MKLDNN_INCLUDE_DIR}" \
     "${OPT_MKLDNN_LIBRARY}" \
+    -DPYTHON_EXECUTABLE=${ARG_PYTHON_EXECUTABLE} \
     -DLINK_STATIC_LIBGCC=${ARG_LINK_STATIC_LIBGCC} \
     -DLINK_STATIC_LIBSTDCXX=${ARG_LINK_STATIC_LIBSTDCXX} \
     -DLINK_STATIC_LIBPROTOBUF=${ARG_LINK_STATIC_LIBPROTOBUF} \