diff --git a/FAQ.md b/FAQ.md
index 8f8cf28..f1c324a 100644
--- a/FAQ.md
+++ b/FAQ.md
@@ -317,6 +317,12 @@ Sample requests:
 {"jsonrpc":"2.0","id":3,"method":"$ccls/member","params":{"textDocument":{"uri":"file:///tmp/c/a.cc"},"position":{"line":0,"character":7},"kind":2}}
 ```
 
+## Reload
+
+* Notification `$ccls/reload`: reset global index and reload index files. This is useful if you have modified a common header file and you expect all opened files to be re-indexed. Note, this doesn't reload project files (`compile_commands.json` and `.ccls`).
+* Notification `workspace/didChangeConfiguration`: reload project files and re-index if necessary.
+* Restart the ccls process. Some language clients can restart the language server (e.g. lsp-mode `lsp-restart-workspace`).
+
 ## Cases
 
 On a laptop with one (i7-6600U CPU @ 2.60GHz, hyper-threading, `nproc`=4), 4