diff --git a/tools/tplgtool2.py b/tools/tplgtool2.py
index 0a2c205b..bb505f92 100755
--- a/tools/tplgtool2.py
+++ b/tools/tplgtool2.py
@@ -470,7 +470,7 @@ def __init__(self):
             "mask" / Int32ul,
             "count" / Int32ul,
             "texts" / Array(self._num_texts, String(self._id_name_maxlen, "ascii")),
-            "values" / Array(self._num_texts * self._id_name_maxlen / 4, Int32ul),
+            "values" / Array(int(self._num_texts * self._id_name_maxlen / 4), Int32ul),
             "priv" / self._private_raw,
         )
         self._bytes_control_body = Struct( # `snd_soc_tplg_bytes_control` without `hdr`