diff --git a/theia-extensions/viewer-prototype/src/browser/trace-viewer/trace-viewer-contribution.ts b/theia-extensions/viewer-prototype/src/browser/trace-viewer/trace-viewer-contribution.ts
index 25d041d9..489b0cc3 100644
--- a/theia-extensions/viewer-prototype/src/browser/trace-viewer/trace-viewer-contribution.ts
+++ b/theia-extensions/viewer-prototype/src/browser/trace-viewer/trace-viewer-contribution.ts
@@ -1,11 +1,10 @@
-import { injectable, inject, postConstruct } from '@theia/core/shared/inversify';
+import { injectable, inject } from '@theia/core/shared/inversify';
 import { CommandRegistry, CommandContribution, MessageService } from '@theia/core';
 import {
     WidgetOpenerOptions,
     WidgetOpenHandler,
     KeybindingContribution,
-    KeybindingRegistry,
-    OpenWithService
+    KeybindingRegistry
 } from '@theia/core/lib/browser';
 import URI from '@theia/core/lib/common/uri';
 import { TraceViewerWidget, TraceViewerWidgetOptions } from './trace-viewer';
@@ -53,7 +52,6 @@ export class TraceViewerContribution
     @inject(TracePreferences) protected tracePreferences: TracePreferences;
     @inject(TraceServerConfigService) protected readonly traceServerConfigService: TraceServerConfigService;
     @inject(MessageService) protected readonly messageService: MessageService;
-    @inject(OpenWithService) protected readonly openWithService: OpenWithService;
     @inject(TraceServerConnectionStatusClient)
     protected readonly serverStatusService: TraceServerConnectionStatusClient;
 
@@ -68,17 +66,6 @@ export class TraceViewerContribution
         return this.tracePreferences[TRACE_ARGS];
     }
 
-    @postConstruct()
-    protected init(): void {
-        this.openWithService.registerHandler({
-            id: this.id + '-open-with',
-            label: this.label,
-            providerName: 'Theia Trace Viewer',
-            canHandle: (uri: URI) => this.canHandle(uri),
-            open: (uri: URI) => this.open(uri)
-        });
-    }
-
     protected createWidgetOptions(uri: URI, options?: TraceViewerWidgetOpenerOptions): TraceViewerWidgetOptions {
         return {
             traceURI: uri.path.toString(),