diff --git a/2-IOC-deployment.md b/2-IOC-deployment.md
index b351b7dad80b5173a2556270438f0ce6367cd047..f072d084db3b00bb07b2dec53d24d71f70bb0297 100644
--- a/2-IOC-deployment.md
+++ b/2-IOC-deployment.md
@@ -220,7 +220,7 @@ Resolve the problem that is causing the first error message, which accurately de
 <details>
 <summary>hint</summary>
 
-The envPaths file is generated by the build system and is affected by the Makefile in the IOC's startup directory.
+The **envPaths** file is generated by the build system and is affected by the **Makefile** in the IOC's startup directory, `${IOC_DIR}/xxx/iocBoot/iocxxx`, which is also the current working directory.
 
 </details>