diff --git a/src/component/tooltip/TooltipHTMLContent.ts b/src/component/tooltip/TooltipHTMLContent.ts
index c00e4df06a..a6e58e7e9e 100644
--- a/src/component/tooltip/TooltipHTMLContent.ts
+++ b/src/component/tooltip/TooltipHTMLContent.ts
@@ -469,7 +469,7 @@ class TooltipHTMLContent {
         makeStyleCoord(styleCoord, this._zr, this._container, zrX, zrY);
 
         if (styleCoord[0] != null && styleCoord[1] != null) {
-            const style: any = this.el ? (this.el.style || {}) : {}
+            const style: any = this.el ? (this.el.style || {}) : {};
             const transforms = assembleTransform(styleCoord[0], styleCoord[1]) as string[][];
             each(transforms, (transform) => {
               style[transform[0] as any] = transform[1];