diff --git a/README.md b/README.md
index b9aa349..288a682 100644
--- a/README.md
+++ b/README.md
@@ -50,6 +50,7 @@ Check [monocart coverage reports](https://github.com/cenfun/monocart-coverage-re
 
 ## Common issues
 - Resolve full path of the file with option `sourcePath` (issue [#5](https://github.com/cenfun/jest-monocart-coverage/issues/5))
+
 ```js
 const path = require("path")
 
@@ -65,3 +66,15 @@ const path = require("path")
   
 }
 ```
+
+- Failed to load Sourcemap
+
+Using `sourceMap` instead of `inlineSourceMap` in `tsconfig.json`
+```json
+{
+    "compilerOptions": {
+        "sourceMap": true,
+        "inlineSourceMap": false
+    }
+}
+```
\ No newline at end of file