diff --git a/src/vs/workbench/contrib/debug/browser/debugService.ts b/src/vs/workbench/contrib/debug/browser/debugService.ts
index f884a36d4bb51f30073b4c97c9b62f7a459e2802..dd504fba25008281d9e3e75625f9065c4485eb4f 100644
--- a/src/vs/workbench/contrib/debug/browser/debugService.ts
+++ b/src/vs/workbench/contrib/debug/browser/debugService.ts
@@ -376,8 +376,6 @@ export class DebugService implements IDebugService {
 			config!.noDebug = true;
 		} else if (options && typeof options.noDebug === 'undefined' && options.parentSession && options.parentSession.configuration.noDebug) {
 			config!.noDebug = true;
-		} else {
-			delete config!.noDebug;
 		}
 		const unresolvedConfig = deepClone(config);