diff --git a/src/tools/pw-cat.c b/src/tools/pw-cat.c
index 70570aa0f..af63679ec 100644
--- a/src/tools/pw-cat.c
+++ b/src/tools/pw-cat.c
@@ -1069,6 +1069,7 @@ static int setup_sndfile(struct data *data)
 	const char *s;
 	unsigned int nom = 0;
 
+	spa_zero(info);
 	/* for record, you fill in the info first */
 	if (data->mode == mode_record) {
 		if (data->format == NULL)