diff --git a/packages/core/src/baseclient.ts b/packages/core/src/baseclient.ts
index 13d2ff950922..bf5795eacd3b 100644
--- a/packages/core/src/baseclient.ts
+++ b/packages/core/src/baseclient.ts
@@ -434,10 +434,10 @@ export abstract class BaseClient<B extends Backend, O extends Options> implement
    * @param event The event that will be filled with all integrations.
    */
   protected _applyIntegrationsMetadata(event: Event): void {
-    const sdkInfo = event.sdk;
     const integrationsArray = Object.keys(this._integrations);
-    if (sdkInfo && integrationsArray.length > 0) {
-      sdkInfo.integrations = integrationsArray;
+    if (integrationsArray.length > 0) {
+      event.sdk = event.sdk || {};
+      event.sdk.integrations = [...(event.sdk.integrations || []), ...integrationsArray];
     }
   }
 
diff --git a/packages/core/src/request.ts b/packages/core/src/request.ts
index d4bb8eca42ae..6cce3e539521 100644
--- a/packages/core/src/request.ts
+++ b/packages/core/src/request.ts
@@ -19,11 +19,7 @@ function enhanceEventWithSdkInfo(event: Event, sdkInfo?: SdkInfo): Event {
   if (!sdkInfo) {
     return event;
   }
-
-  event.sdk = event.sdk || {
-    name: sdkInfo.name,
-    version: sdkInfo.version,
-  };
+  event.sdk = event.sdk || {};
   event.sdk.name = event.sdk.name || sdkInfo.name;
   event.sdk.version = event.sdk.version || sdkInfo.version;
   event.sdk.integrations = [...(event.sdk.integrations || []), ...(sdkInfo.integrations || [])];
diff --git a/packages/core/test/lib/base.test.ts b/packages/core/test/lib/base.test.ts
index 8274f65baba8..638f3127a076 100644
--- a/packages/core/test/lib/base.test.ts
+++ b/packages/core/test/lib/base.test.ts
@@ -477,6 +477,15 @@ describe('BaseClient', () => {
       });
     });
 
+    test('adds installed integrations to sdk info', () => {
+      const client = new TestClient({ dsn: PUBLIC_DSN, integrations: [new TestIntegration()] });
+      client.setupIntegrations();
+      client.captureEvent({ message: 'message' });
+      expect(TestBackend.instance!.event!.sdk).toEqual({
+        integrations: ['TestIntegration'],
+      });
+    });
+
     test('normalizes event with default depth of 3', () => {
       expect.assertions(1);
       const client = new TestClient({ dsn: PUBLIC_DSN });
diff --git a/packages/react/src/sdk.ts b/packages/react/src/sdk.ts
index 07aa5912a3ad..038a509c03d7 100644
--- a/packages/react/src/sdk.ts
+++ b/packages/react/src/sdk.ts
@@ -5,18 +5,15 @@ import { BrowserOptions, init as browserInit, SDK_VERSION } from '@sentry/browse
  */
 export function init(options: BrowserOptions): void {
   options._metadata = options._metadata || {};
-  if (options._metadata.sdk === undefined) {
-    options._metadata.sdk = {
-      name: 'sentry.javascript.react',
-      packages: [
-        {
-          name: 'npm:@sentry/react',
-          version: SDK_VERSION,
-        },
-      ],
-      version: SDK_VERSION,
-    };
-  }
-
+  options._metadata.sdk = options._metadata.sdk || {
+    name: 'sentry.javascript.react',
+    packages: [
+      {
+        name: 'npm:@sentry/react',
+        version: SDK_VERSION,
+      },
+    ],
+    version: SDK_VERSION,
+  };
   browserInit(options);
 }
diff --git a/packages/types/src/sdkinfo.ts b/packages/types/src/sdkinfo.ts
index 14bb3c331509..0a839b0c7c95 100644
--- a/packages/types/src/sdkinfo.ts
+++ b/packages/types/src/sdkinfo.ts
@@ -1,8 +1,8 @@
 import { Package } from './package';
 
 export interface SdkInfo {
-  name: string;
-  version: string;
+  name?: string;
+  version?: string;
   integrations?: string[];
   packages?: Package[];
 }