diff --git a/src/core/VideoPlayer.ts b/src/core/VideoPlayer.ts
index 007e393..5f4fb61 100644
--- a/src/core/VideoPlayer.ts
+++ b/src/core/VideoPlayer.ts
@@ -26,6 +26,9 @@ export class VP {
     this.video = this.videoElement(video);
     this.videoSrc = this.video?.querySelectorAll<HTMLSourceElement>("source");
 
+    if (!this.config.type) {
+      throw new Error("Type not specified in config.");
+    }
     this.adapter = this.adapterInit(this.config.type);
 
     if (config.controls) {
diff --git a/src/types/index.ts b/src/types/index.ts
index 1a55086..33bfeec 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -17,7 +17,7 @@ export interface AdapterAPI {
 }
 
 export interface PlayerConfig {
-  type?: "native" | "hls" | "dash";
+  type: "native" | "hls" | "dash";
   theme?: "dark" | "light";
   accent?: string;
   controls?: boolean | ControlConfig;