--- doc/Makefile.orig	2020-10-27 14:38:56 UTC
+++ doc/Makefile
@@ -17,7 +17,7 @@ I18NSPHINXOPTS  = $(PAPEROPT_$(PAPER)) $(SPHINXOPTS) s
 YAML_DOC_INPUT=../conf/cassandra.yaml
 YAML_DOC_OUTPUT=source/configuration/cassandra_config_file.rst
 
-MAKE_CASSANDRA_YAML = python convert_yaml_to_rst.py $(YAML_DOC_INPUT) $(YAML_DOC_OUTPUT)
+MAKE_CASSANDRA_YAML = ${PYTHON_CMD} convert_yaml_to_rst.py $(YAML_DOC_INPUT) $(YAML_DOC_OUTPUT)
 
 WEB_SITE_PRESENCE_FILE='source/.build_for_website'