diff --git a/src/vs/workbench/services/editor/browser/editorService.ts b/src/vs/workbench/services/editor/browser/editorService.ts
index 85bff9d25b1..02bdd13b06d 100644
--- a/src/vs/workbench/services/editor/browser/editorService.ts
+++ b/src/vs/workbench/services/editor/browser/editorService.ts
@@ -250,7 +250,7 @@ export class EditorService extends Disposable implements EditorServiceImpl {
 
 				// Determine new resulting target resource
 				let targetResource: URI;
-				if (isEqual(source, resource)) {
+				if (this.uriIdentityService.extUri.isEqual(source, resource)) {
 					targetResource = target; // file got moved
 				} else {
 					const ignoreCase = !this.fileService.hasCapability(resource, FileSystemProviderCapabilities.PathCaseSensitive);