diff --git a/package.json b/package.json
index 8bde38c..c9435f0 100755
--- a/package.json
+++ b/package.json
@@ -154,7 +154,8 @@
 				},
 				"phpstan.tmpDir": {
 					"type": "string",
-					"description": "Path to the PHPStan TMP directory. Defaults to PHPStan's default (which is /tmp/phpstan)"
+					"description": "Path to the PHPStan TMP directory. Defaults to PHPStan's default (which is /tmp/phpstan)",
+					"default": "/tmp/phpstan"
 				},
 				"phpstan.checkValidity": {
 					"type": "boolean",
diff --git a/server/src/lib/editorConfig.ts b/server/src/lib/editorConfig.ts
index 9716fcd..51eda20 100644
--- a/server/src/lib/editorConfig.ts
+++ b/server/src/lib/editorConfig.ts
@@ -1,5 +1,6 @@
 import type { ConfigSettingsWithoutPrefix } from '../../../shared/config';
 import type { ClassConfig, WorkspaceFolders } from './types';
+import { DEFAULT_TMP_DIR } from '../../../shared/constants';
 import type { Disposable } from 'vscode-languageserver';
 import { fromEntries } from '../../../shared/util';
 
@@ -15,6 +16,10 @@ export async function getEditorConfiguration(
 			section: 'phpstan',
 		})) as ConfigSettingsWithoutPrefix;
 
+	let tmpDir = editorConfig.tmpDir;
+	if (tmpDir === DEFAULT_TMP_DIR) {
+		tmpDir = editorConfig.proTmpDir || editorConfig.tmpDir;
+	}
 	return {
 		...editorConfig,
 		binPath: replaceVariables(editorConfig.binPath, workspaceFolders),
@@ -28,10 +33,7 @@ export async function getEditorConfiguration(
 				replaceVariables(value, workspaceFolders),
 			])
 		),
-		tmpDir: replaceVariables(
-			editorConfig.tmpDir || editorConfig.proTmpDir || '',
-			workspaceFolders
-		),
+		tmpDir: replaceVariables(tmpDir, workspaceFolders),
 		rootDir: replaceVariables(editorConfig.rootDir, workspaceFolders),
 		options: editorConfig.options.map((option) =>
 			replaceVariables(option, workspaceFolders)
diff --git a/shared/commands/defs.ts b/shared/commands/defs.ts
index 4d5376e..1f134c4 100644
--- a/shared/commands/defs.ts
+++ b/shared/commands/defs.ts
@@ -3,6 +3,7 @@ import type {
 	ViewDefinition,
 	ConfigurationDefinition,
 } from 'vscode-generate-package-json';
+import { DEFAULT_TMP_DIR } from '../constants';
 
 export enum Commands {
 	SCAN_FILE_FOR_ERRORS = 'phpstan.scanFileForErrors',
@@ -204,6 +205,7 @@ export const config = {
 			type: 'string',
 			description:
 				"Path to the PHPStan TMP directory. Defaults to PHPStan's default (which is /tmp/phpstan)",
+			default: DEFAULT_TMP_DIR,
 		},
 	},
 	'phpstan.checkValidity': {
diff --git a/shared/constants.ts b/shared/constants.ts
index 6807f98..323ff20 100644
--- a/shared/constants.ts
+++ b/shared/constants.ts
@@ -19,3 +19,4 @@ export const SPAWN_ARGS = {
 	shell: process.platform === 'win32',
 	windowsVerbatimArguments: true,
 };
+export const DEFAULT_TMP_DIR = '/tmp/phpstan';