diff --git a/src/vs/workbench/parts/files/common/explorerModel.ts b/src/vs/workbench/parts/files/common/explorerModel.ts
index b299ed2796809b173c7cfd95b093129e2393bfcd..6b66d23af4fa80b88fff5d9bf24bdaec9f00dd43 100644
--- a/src/vs/workbench/parts/files/common/explorerModel.ts
+++ b/src/vs/workbench/parts/files/common/explorerModel.ts
@@ -15,7 +15,7 @@ import { IWorkspaceContextService } from 'vs/platform/workspace/common/workspace
 import { toResource, IEditorIdentifier, IEditorInput } from 'vs/workbench/common/editor';
 import { IDisposable, dispose } from 'vs/base/common/lifecycle';
 import { Schemas } from 'vs/base/common/network';
-import { rtrim, startsWithIgnoreCase, startsWith } from 'vs/base/common/strings';
+import { rtrim, startsWithIgnoreCase, startsWith, equalsIgnoreCase } from 'vs/base/common/strings';
 import { IEditorGroup } from 'vs/workbench/services/group/common/editorGroupsService';
 
 export class Model {
@@ -343,7 +343,7 @@ export class ExplorerItem {
 	public find(resource: URI): ExplorerItem {
 		// Return if path found
 		// For performance reasons try to do the comparison as fast as possible
-		if (resource && this.resource.scheme === resource.scheme && this.resource.authority === resource.authority &&
+		if (resource && this.resource.scheme === resource.scheme && equalsIgnoreCase(this.resource.authority, resource.authority) &&
 			(resources.hasToIgnoreCase(resource) ? startsWithIgnoreCase(resource.path, this.resource.path) : startsWith(resource.path, this.resource.path))) {
 			return this.findByPath(rtrim(resource.path, paths.sep), this.resource.path.length);
 		}