diff --git a/modules/mvt/src/lib/geojsonvt/proto-tile.ts b/modules/mvt/src/lib/geojsonvt/proto-tile.ts
index 9271cfe534..3cec7055d9 100644
--- a/modules/mvt/src/lib/geojsonvt/proto-tile.ts
+++ b/modules/mvt/src/lib/geojsonvt/proto-tile.ts
@@ -79,7 +79,12 @@ export function createProtoTile(features: any[], z, tx, ty, options: CreateTileO
 }
 
 // eslint-disable-next-line complexity, max-statements
-function addProtoFeature(tile: ProtoTile, feature: ProtoFeature, tolerance: number, options: CreateTileOptions) {
+function addProtoFeature(
+  tile: ProtoTile,
+  feature: ProtoFeature,
+  tolerance: number,
+  options: CreateTileOptions
+) {
   const geom = feature.geometry;
   const type = feature.type;
   const simplifiedGeometry: number[] = [];
diff --git a/modules/mvt/src/table-tile-source.ts b/modules/mvt/src/table-tile-source.ts
index b6c5af93a5..578442ca2c 100644
--- a/modules/mvt/src/table-tile-source.ts
+++ b/modules/mvt/src/table-tile-source.ts
@@ -452,7 +452,7 @@ function convertToGeoJSONTable(
         }
         break;
       default:
-        throw new Error(rawFeature.simplifiedType +'is not a valid simplified type');
+        throw new Error(`${rawFeature.simplifiedType}is not a valid simplified type`);
     }
 
     switch (props.coordinates) {