diff --git a/types/c3/index.d.ts b/types/c3/index.d.ts
index 0d94347ca3..e047b22c7e 100644
--- a/types/c3/index.d.ts
+++ b/types/c3/index.d.ts
@@ -806,6 +806,10 @@ export interface ZoomOptions {
      * Enable zooming.
      */
     enabled?: boolean;
+    /**
+     * Set interaction type for zooming
+     */
+    type?: 'scroll' | 'drag';
     /**
      * Enable to rescale after zooming. If true set, y domain will be updated according to the zoomed region.
      */