diff --git a/docs/src/diagnostics.md b/docs/src/diagnostics.md
index a015fbebf88b64ebb75941133d3ab21279182685..9603c8197cf7ef473da027a51fa0db64d0b9b8e9 100644
--- a/docs/src/diagnostics.md
+++ b/docs/src/diagnostics.md
@@ -51,7 +51,7 @@ To configure, use
 
 ```json5
 "project_panel": {
-  "diagnostics": "all",
+  "show_diagnostics": "all",
 }
 ```