diff --git a/device.c b/device.c
index f437c18a..fc8477a1 100644
--- a/device.c
+++ b/device.c
@@ -325,6 +325,7 @@ SR_PRIV void sr_serial_dev_inst_free(struct sr_serial_dev_inst *serial)
 
 	g_free(serial->port);
 	g_free(serial->serialcomm);
+	g_free(serial);
 
 }