diff --git a/leaflet/index.d.ts b/leaflet/index.d.ts
index 91dc413c26..24f6c70c90 100644
--- a/leaflet/index.d.ts
+++ b/leaflet/index.d.ts
@@ -1323,7 +1323,7 @@ declare namespace L {
         openPopup(content: Content, latlng: LatLngExpression, options?: PopupOptions): this;
         closePopup(popup?: Popup): this;
         openTooltip(tooltip: Tooltip): this;
-        openTooltip(content: string | HTMLElement, latlng: LatLngExpression, options?: TooltipOptions): this;
+        openTooltip(content: Content, latlng: LatLngExpression, options?: TooltipOptions): this;
         closeTooltip(tooltip?: Tooltip): this;
 
         // Methods for modifying map state