diff --git a/extensions/typescript-language-features/src/tsServer/spawner.ts b/extensions/typescript-language-features/src/tsServer/spawner.ts
index 2c32cfb87f9..1c07b20ee78 100644
--- a/extensions/typescript-language-features/src/tsServer/spawner.ts
+++ b/extensions/typescript-language-features/src/tsServer/spawner.ts
@@ -232,7 +232,7 @@ export class TypeScriptServerSpawner {
 					tsServerLog = { type: 'file', uri: logFilePath };
 
 					args.push('--logVerbosity', TsServerLogLevel.toString(configuration.tsServerLogLevel));
-					args.push('--logFile', logFilePath.path);
+					args.push('--logFile', logFilePath.fsPath);
 				}
 			}
 		}