diff --git a/mcp-server/src/tools/get-task.js b/mcp-server/src/tools/get-task.js
index 6484990b..5b3ef0e1 100644
--- a/mcp-server/src/tools/get-task.js
+++ b/mcp-server/src/tools/get-task.js
@@ -65,7 +65,6 @@ export function registerShowTaskTool(server) {
 				),
 			projectRoot: z
 				.string()
-				.optional()
 				.describe(
 					'Absolute path to the project root directory (Optional, usually from session)'
 				)