diff --git a/types/pannellum/index.d.ts b/types/pannellum/index.d.ts
index da3fdf94f3775b..35a722fae242a6 100644
--- a/types/pannellum/index.d.ts
+++ b/types/pannellum/index.d.ts
@@ -438,6 +438,30 @@ declare namespace Pannellum {
         scale?: boolean;
     }
 
+    /** A tour configuration */
+    interface TourOptions {
+        /**
+         * The `default` property contains options that are used for each scene,
+         * but options specified for individual scenes override these options. The
+         * `default` property is required to have a `firstScene` property that contains
+         * the scene ID for the first scene to be displayed.
+         */
+        default: ConfigOptions & {
+            firstScene: string;
+        };
+
+        /**
+         * The `scenes` property contains a dictionary of scenes, specified by scene
+         * IDs. The values assigned to these IDs are specific to each scene.
+         */
+        scenes: {
+            [sceneId: string]: ConfigOptions;
+        };
+
+        /** @deprecated -- undocumented alternative to `default.firstScene`. */
+        firstScene?: string;
+    }
+
     class Renderer {
         /**
          * Create a new panorama renderer.
@@ -532,7 +556,7 @@ declare namespace Pannellum {
          * @param container - The container (div) element for the viewer, or its ID.
          * @param initialConfig - Initial configuration for the viewer.
          */
-        constructor(container: HTMLElement | string, initialConfig: ConfigOptions);
+        constructor(container: HTMLElement | string, initialConfig: ConfigOptions | TourOptions);
 
         /**
          * Checks whether or not a panorama is loaded.
@@ -888,14 +912,12 @@ interface Window {
         renderer(container: HTMLElement): Pannellum.Renderer;
     };
     pannellum: {
-        viewer(container: HTMLElement | string, initialConfig: Pannellum.ConfigOptions): Pannellum.Viewer;
+        viewer(
+            container: HTMLElement | string,
+            initialConfig: Pannellum.ConfigOptions | Pannellum.TourOptions,
+        ): Pannellum.Viewer;
     };
 }
 
-declare const libpannellum: {
-    renderer(container: HTMLElement): Pannellum.Renderer;
-};
-
-declare const pannellum: {
-    viewer(container: HTMLElement | string, initialConfig: Pannellum.ConfigOptions): Pannellum.Viewer;
-};
+declare const libpannellum: Window["libpannellum"];
+declare const pannellum: Window["pannellum"];
diff --git a/types/pannellum/pannellum-tests.ts b/types/pannellum/pannellum-tests.ts
index 013515d1f16118..508a566c232650 100644
--- a/types/pannellum/pannellum-tests.ts
+++ b/types/pannellum/pannellum-tests.ts
@@ -47,3 +47,27 @@ viewer.addScene("myScene", {
 viewer.addScene("myScene", {
     // test that all properties are optional
 });
+
+// Test tour configurations
+const tourOptions: Pannellum.TourOptions = {
+    default: {
+        firstScene: "s1",
+        sceneFadeDuration: 1000,
+        author: "Me",
+    },
+    scenes: {
+        s1: {
+            showFullscreenCtrl: false,
+            autoLoad: false,
+            compass: false,
+            yaw: 0,
+            type: "equirectangular",
+            preview: "",
+            panorama: "",
+            northOffset: 1.3,
+        },
+        s2: {},
+    },
+};
+
+pannellum.viewer("abc", tourOptions);