diff --git a/src/vs/workbench/contrib/search/common/searchModel.ts b/src/vs/workbench/contrib/search/common/searchModel.ts
index d7a8ce87201bd..f5d7b7b8bd007 100644
--- a/src/vs/workbench/contrib/search/common/searchModel.ts
+++ b/src/vs/workbench/contrib/search/common/searchModel.ts
@@ -24,6 +24,7 @@ import { IConfigurationService } from 'vs/platform/configuration/common/configur
 import { IFileService, IFileStatWithPartialMetadata } from 'vs/platform/files/common/files';
 import { createDecorator, IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 import { ILabelService } from 'vs/platform/label/common/label';
+import { ILogService, LogLevel } from 'vs/platform/log/common/log';
 import { IProgress, IProgressStep } from 'vs/platform/progress/common/progress';
 import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
 import { minimapFindMatch, overviewRulerFindMatchForeground } from 'vs/platform/theme/common/colorRegistry';
@@ -851,7 +852,8 @@ export class FolderMatchWorkspaceRoot extends FolderMatchWithResource {
 		@IReplaceService replaceService: IReplaceService,
 		@IInstantiationService instantiationService: IInstantiationService,
 		@ILabelService labelService: ILabelService,
-		@IUriIdentityService uriIdentityService: IUriIdentityService
+		@IUriIdentityService uriIdentityService: IUriIdentityService,
+		@ILogService private readonly _logService: ILogService,
 	) {
 		super(_resource, _id, _index, _query, _parent, _searchModel, null, replaceService, instantiationService, labelService, uriIdentityService);
 	}
@@ -881,14 +883,22 @@ export class FolderMatchWorkspaceRoot extends FolderMatchWithResource {
 		const fileMatchParentParts: URI[] = [];
 		let uri = this.uriParent(rawFileMatch.resource);
 
+		const debug: string[] = ['[search model building]'];
 		while (!this.uriEquals(this.resource, uri)) {
 			fileMatchParentParts.unshift(uri);
 			const prevUri = uri;
 			uri = this.uriParent(uri);
+			if (this._logService.getLevel() === LogLevel.Trace) {
+				debug.push(`current uri parent ${uri} comparing with ${prevUri}`);
+			}
 			if (this.uriEquals(prevUri, uri)) {
+				this._logService.trace(debug.join('\n\n'));
 				throw Error(`${rawFileMatch.resource} is not correctly configured as a child of its ${this.resource}`);
 			}
 		}
+		if (this._logService.getLevel() === LogLevel.Trace) {
+			this._logService.trace(debug.join('\n\n'));
+		}
 
 		const root = this.closestRoot ?? this;
 		let parent: FolderMatch = this;
diff --git a/src/vs/workbench/contrib/search/test/browser/searchViewlet.test.ts b/src/vs/workbench/contrib/search/test/browser/searchViewlet.test.ts
index d003bb48d856b..a51ea982326dd 100644
--- a/src/vs/workbench/contrib/search/test/browser/searchViewlet.test.ts
+++ b/src/vs/workbench/contrib/search/test/browser/searchViewlet.test.ts
@@ -14,7 +14,7 @@ import { TestConfigurationService } from 'vs/platform/configuration/test/common/
 import { FileService } from 'vs/platform/files/common/fileService';
 import { TestInstantiationService } from 'vs/platform/instantiation/test/common/instantiationServiceMock';
 import { ILabelService } from 'vs/platform/label/common/label';
-import { NullLogService } from 'vs/platform/log/common/log';
+import { ILogService, NullLogService } from 'vs/platform/log/common/log';
 import { IThemeService } from 'vs/platform/theme/common/themeService';
 import { TestThemeService } from 'vs/platform/theme/test/common/testThemeService';
 import { IUriIdentityService } from 'vs/platform/uriIdentity/common/uriIdentity';
@@ -36,6 +36,7 @@ suite('Search - Viewlet', () => {
 		instantiation.set(IWorkspaceContextService, new TestContextService(TestWorkspace));
 		instantiation.stub(IUriIdentityService, new UriIdentityService(new FileService(new NullLogService())));
 		instantiation.stub(ILabelService, new MockLabelService());
+		instantiation.stub(ILogService, new NullLogService());
 	});
 
 	test('Data Source', function () {
diff --git a/src/vs/workbench/contrib/search/test/common/searchModel.test.ts b/src/vs/workbench/contrib/search/test/common/searchModel.test.ts
index 1bd22a3466a8e..c62b157915d93 100644
--- a/src/vs/workbench/contrib/search/test/common/searchModel.test.ts
+++ b/src/vs/workbench/contrib/search/test/common/searchModel.test.ts
@@ -20,7 +20,7 @@ import { SearchModel } from 'vs/workbench/contrib/search/common/searchModel';
 import { IThemeService } from 'vs/platform/theme/common/themeService';
 import { TestThemeService } from 'vs/platform/theme/test/common/testThemeService';
 import { FileService } from 'vs/platform/files/common/fileService';
-import { NullLogService } from 'vs/platform/log/common/log';
+import { ILogService, NullLogService } from 'vs/platform/log/common/log';
 import { IUriIdentityService } from 'vs/platform/uriIdentity/common/uriIdentity';
 import { UriIdentityService } from 'vs/platform/uriIdentity/common/uriIdentityService';
 import { isWindows } from 'vs/base/common/platform';
@@ -78,6 +78,7 @@ suite('SearchModel', () => {
 		instantiationService.stub(ISearchService, {});
 		instantiationService.stub(ISearchService, 'textSearch', Promise.resolve({ results: [] }));
 		instantiationService.stub(IUriIdentityService, new UriIdentityService(new FileService(new NullLogService())));
+		instantiationService.stub(ILogService, new NullLogService());
 
 		const config = new TestConfigurationService();
 		config.setUserConfiguration('search', { searchOnType: true });
diff --git a/src/vs/workbench/contrib/search/test/common/searchResult.test.ts b/src/vs/workbench/contrib/search/test/common/searchResult.test.ts
index ed10f20a80bfc..b7c72c0c44c03 100644
--- a/src/vs/workbench/contrib/search/test/common/searchResult.test.ts
+++ b/src/vs/workbench/contrib/search/test/common/searchResult.test.ts
@@ -21,7 +21,7 @@ import { TestThemeService } from 'vs/platform/theme/test/common/testThemeService
 import { IUriIdentityService } from 'vs/platform/uriIdentity/common/uriIdentity';
 import { UriIdentityService } from 'vs/platform/uriIdentity/common/uriIdentityService';
 import { FileService } from 'vs/platform/files/common/fileService';
-import { NullLogService } from 'vs/platform/log/common/log';
+import { ILogService, NullLogService } from 'vs/platform/log/common/log';
 import { ILabelService } from 'vs/platform/label/common/label';
 import { MockLabelService } from 'vs/workbench/services/label/test/common/mockLabelService';
 import { isWindows } from 'vs/base/common/platform';
@@ -40,6 +40,7 @@ suite('SearchResult', () => {
 		instantiationService.stubPromise(IReplaceService, {});
 		instantiationService.stub(IReplaceService, 'replace', () => Promise.resolve(null));
 		instantiationService.stub(ILabelService, new MockLabelService());
+		instantiationService.stub(ILogService, new NullLogService());
 	});
 
 	test('Line Match', function () {