diff --git a/src/visualizations/config/adapters/dhis_highcharts/subtitle/index.js b/src/visualizations/config/adapters/dhis_highcharts/subtitle/index.js
index 9d2dc1bc7..6d7dfeae4 100644
--- a/src/visualizations/config/adapters/dhis_highcharts/subtitle/index.js
+++ b/src/visualizations/config/adapters/dhis_highcharts/subtitle/index.js
@@ -36,7 +36,7 @@ function getDefault(layout, dashboard, filterTitle) {
     }
 }
 
-export default function (series, layout, metaData, dashboard) {
+export default function subtitle(series, layout, metaData, dashboard) {
     const fontStyle = mergeFontStyleWithDefault(
         layout.fontStyle && layout.fontStyle[FONT_STYLE_VISUALIZATION_SUBTITLE],
         FONT_STYLE_VISUALIZATION_SUBTITLE
diff --git a/src/visualizations/config/adapters/dhis_highcharts/title/yearOverYear.js b/src/visualizations/config/adapters/dhis_highcharts/title/yearOverYear.js
index d37f5d6be..d9955cfaa 100644
--- a/src/visualizations/config/adapters/dhis_highcharts/title/yearOverYear.js
+++ b/src/visualizations/config/adapters/dhis_highcharts/title/yearOverYear.js
@@ -1,6 +1,6 @@
 import getFilterText from '../../../../util/getFilterText.js'
 
-export default function (layout, metaData, dashboard) {
+export default function yearOverYear(layout, metaData, dashboard) {
     const titleFragments = []
 
     if (layout.columns && layout.columns.length && !dashboard) {