diff --git a/languageServer/src/LanguageServer.ts b/languageServer/src/LanguageServer.ts
index 9a0da1e348..fd1e2ad598 100644
--- a/languageServer/src/LanguageServer.ts
+++ b/languageServer/src/LanguageServer.ts
@@ -107,7 +107,7 @@ export class LanguageServer {
   ) {
     for (const possibleFile of symbolUnderCursor.name.split(' ')) {
       const possiblePath = URI.parse(
-        join(dirname(document.uri), possibleFile)
+        join(dirname(document.uri), ...possibleFile.split('/'))
       ).toString()
       const file = await connection.sendRequest<{
         contents: string
diff --git a/languageServer/src/test/definitions.test.ts b/languageServer/src/test/definitions.test.ts
index 01fa45cd1a..eebe6cb9d7 100644
--- a/languageServer/src/test/definitions.test.ts
+++ b/languageServer/src/test/definitions.test.ts
@@ -1,3 +1,4 @@
+import { join } from 'path'
 import { Position, Range } from 'vscode-languageserver/node'
 import { URI } from 'vscode-uri'
 import { params_dvc_yaml, train_dvc_yaml } from './fixtures/examples/valid'
@@ -59,7 +60,7 @@ describe('textDocument/definitions', () => {
   })
 
   it('should try to read the file system when a python file is unknown', async () => {
-    const trainUri = URI.file('train.py').toString()
+    const trainUri = URI.file(join(__dirname, 'train.py')).toString()
 
     mockedReadFileContents.mockImplementation(path => {
       if (path === trainUri) {
@@ -72,7 +73,7 @@ describe('textDocument/definitions', () => {
       {
         languageId: 'yaml',
         mockContents: train_dvc_yaml,
-        mockPath: 'dvc.yaml'
+        mockPath: join(__dirname, 'dvc.yaml')
       }
     ])
 
diff --git a/languageServer/src/test/utils/openTheseFilesAndNotifyServer.ts b/languageServer/src/test/utils/openTheseFilesAndNotifyServer.ts
index 1134ca0d12..7ae49968bb 100644
--- a/languageServer/src/test/utils/openTheseFilesAndNotifyServer.ts
+++ b/languageServer/src/test/utils/openTheseFilesAndNotifyServer.ts
@@ -4,7 +4,7 @@ import { URI } from 'vscode-uri'
 import { client } from './setup-test-connections'
 
 export const openTheseFilesAndNotifyServer = async (
-  files: Array<{ mockPath: string; mockContents: string; languageId: string }>
+  files: { mockPath: string; mockContents: string; languageId: string }[]
 ) => {
   const filesToReturn: TextDocument[] = []