diff --git a/src/hwdriver.c b/src/hwdriver.c
index f9649f0c..c7dc616c 100644
--- a/src/hwdriver.c
+++ b/src/hwdriver.c
@@ -102,8 +102,8 @@ static struct sr_config_info sr_config_info_data[] = {
 		"Buffer size", NULL},
 	{SR_CONF_TIMEBASE, SR_T_RATIONAL_PERIOD, "timebase",
 		"Time base", NULL},
-	{SR_CONF_FILTER, SR_T_STRING, "filter",
-		"Filter targets", NULL},
+	{SR_CONF_FILTER, SR_T_BOOL, "filter",
+		"Filter", NULL},
 	{SR_CONF_VDIV, SR_T_RATIONAL_VOLT, "vdiv",
 		"Volts/div", NULL},
 	{SR_CONF_COUPLING, SR_T_STRING, "coupling",