diff --git a/plugins/node/opentelemetry-instrumentation-koa/src/koa.ts b/plugins/node/opentelemetry-instrumentation-koa/src/koa.ts
index 9ea83324de..5426a519cd 100644
--- a/plugins/node/opentelemetry-instrumentation-koa/src/koa.ts
+++ b/plugins/node/opentelemetry-instrumentation-koa/src/koa.ts
@@ -22,7 +22,7 @@ import {
   InstrumentationNodeModuleDefinition,
 } from '@opentelemetry/instrumentation';
 
-import type * as koa from 'koa';
+import * as koa from 'koa';
 import {
   KoaMiddleware,
   KoaContext,
@@ -30,7 +30,6 @@ import {
   kLayerPatched,
   KoaLayerType,
   AttributeNames,
-  KoaPluginSpan,
 } from './types';
 import { VERSION } from './version';
 import { getMiddlewareMetadata } from './utils';
@@ -130,7 +129,7 @@ export class KoaInstrumentation extends InstrumentationBase<typeof koa> {
     middlewareLayer[kLayerPatched] = true;
     api.diag.debug('patching Koa middleware layer');
     return async (context: KoaContext, next: koa.Next) => {
-      const parent = api.getSpan(api.context.active()) as KoaPluginSpan;
+      const parent = api.getSpan(api.context.active());
       if (parent === undefined) {
         return middlewareLayer(context, next);
       }
@@ -144,7 +143,7 @@ export class KoaInstrumentation extends InstrumentationBase<typeof koa> {
         attributes: metadata.attributes,
       });
 
-      if (!parent?.parentSpanId) {
+      if (!context.request.ctx.parentSpan) {
         context.request.ctx.parentSpan = parent;
       }
 
diff --git a/plugins/node/opentelemetry-instrumentation-koa/src/types.ts b/plugins/node/opentelemetry-instrumentation-koa/src/types.ts
index 9e9aaad17b..4e3db9307c 100644
--- a/plugins/node/opentelemetry-instrumentation-koa/src/types.ts
+++ b/plugins/node/opentelemetry-instrumentation-koa/src/types.ts
@@ -16,7 +16,6 @@
 import type { Middleware, ParameterizedContext, DefaultState } from 'koa';
 import type { RouterParamContext } from '@koa/router';
 import type * as Router from '@koa/router';
-import type { Span } from '@opentelemetry/api';
 
 /**
  * This symbol is used to mark a Koa layer as being already instrumented
@@ -42,10 +41,3 @@ export enum KoaLayerType {
 }
 
 export const KoaComponentName = 'koa';
-
-/**
- * extends opentelemetry/api Span object to instrument the root span name of http plugin by getting parent span id
- */
-export interface KoaPluginSpan extends Span {
-  parentSpanId?: string;
-}