diff --git a/Mk/Uses/python.mk b/Mk/Uses/python.mk
index 46abd8403bbb..b8d19d8320c1 100644
--- a/Mk/Uses/python.mk
+++ b/Mk/Uses/python.mk
@@ -215,7 +215,6 @@
 #	PYTHON_INCLUDEDIR=${PYTHONPREFIX_INCLUDEDIR:S;${PREFIX}/;;}
 #	PYTHON_LIBDIR=${PYTHONPREFIX_LIBDIR:S;${PREFIX}/;;}
 #	PYTHON_PLATFORM=${PYTHON_PLATFORM}
-#	PYTHON_PYOEXTENSION=${PYTHON_PYOEXTENSION}
 #	PYTHON_SITELIBDIR=${PYTHONPREFIX_SITELIBDIR:S;${PREFIX}/;;}
 #	PYTHON_SUFFIX=${PYTHON_SUFFIX}
 #	PYTHON_VER=${PYTHON_VER}
@@ -641,7 +640,7 @@ add-plist-python:
 		/^@dirrmtry / {d = substr($$0, 11); if (d in dirs) {print $$0 "/" pc}; print $$0; next} \
 		{print} \
 		' \
-		pc="__pycache__" mt="$$(${PYMAGICTAG})" pyo="${PYTHON_PYOEXTENSION}" \
+		pc="__pycache__" mt="$$(${PYMAGICTAG})" pyo="opt-1.pyc" \
 		${TMPPLIST} > ${TMPPLIST}.pyc_tmp
 	@${MV} ${TMPPLIST}.pyc_tmp ${TMPPLIST}
 .endif # ${PYTHON_REL} >= 3200 && defined(_PYTHON_FEATURE_PY3KPLIST)
@@ -703,7 +702,6 @@ PREFIX=		${PYTHONBASE}
 PLIST_SUB+=	PYTHON_INCLUDEDIR=${PYTHONPREFIX_INCLUDEDIR:S;${PREFIX}/;;} \
 		PYTHON_LIBDIR=${PYTHONPREFIX_LIBDIR:S;${PREFIX}/;;} \
 		PYTHON_PLATFORM=${PYTHON_PLATFORM} \
-		PYTHON_PYOEXTENSION=${PYTHON_PYOEXTENSION} \
 		PYTHON_SITELIBDIR=${PYTHONPREFIX_SITELIBDIR:S;${PREFIX}/;;} \
 		PYTHON_SUFFIX=${PYTHON_SUFFIX} \
 		PYTHON_VER=${PYTHON_VER} \