diff --git a/src/hardware/lascar-el-usb/protocol.c b/src/hardware/lascar-el-usb/protocol.c
index ba60fe3b..bccf7b6a 100644
--- a/src/hardware/lascar-el-usb/protocol.c
+++ b/src/hardware/lascar-el-usb/protocol.c
@@ -436,6 +436,7 @@ static void lascar_el_usb_dispatch(struct sr_dev_inst *sdi, unsigned char *buf,
 				analog.unit = SR_UNIT_CELSIUS;
 			analog.data = temp;
 			sr_session_send(devc->cb_data, &packet);
+			g_slist_free(analog.channels);
 		}
 
 		ch = sdi->channels->next->data;
@@ -445,6 +446,7 @@ static void lascar_el_usb_dispatch(struct sr_dev_inst *sdi, unsigned char *buf,
 			analog.unit = SR_UNIT_PERCENTAGE;
 			analog.data = rh;
 			sr_session_send(devc->cb_data, &packet);
+			g_slist_free(analog.channels);
 		}
 
 		g_free(temp);