diff --git a/src/models/marker.ts b/src/models/marker.ts
index bbfd617..7b75deb 100644
--- a/src/models/marker.ts
+++ b/src/models/marker.ts
@@ -9,7 +9,7 @@ export type MarkerSerie = {
 export type MarkersConf = {
   series: MarkerSerie[],
   events?: {
-    onMouseMove?: (el: MarkerElem[]) => void;
+    onMouseMove?: (el: MarkerElem) => void;
     onMouseOut?: () => void;
   }
 }