diff --git a/projects/ngx-echarts/src/lib/ngx-echarts.directive.ts b/projects/ngx-echarts/src/lib/ngx-echarts.directive.ts
index d3e72844..f6c74228 100644
--- a/projects/ngx-echarts/src/lib/ngx-echarts.directive.ts
+++ b/projects/ngx-echarts/src/lib/ngx-echarts.directive.ts
@@ -49,7 +49,7 @@ export class NgxEchartsDirective implements OnChanges, OnDestroy, OnInit, AfterV
   @Input() loadingOpts: object | null = null;
 
   // ngx-echarts events
-  @Output() chartInit = new EventEmitter<any>();
+  @Output() chartInit = new EventEmitter<ECharts>();
   @Output() optionsError = new EventEmitter<Error>();
 
   // echarts mouse events