diff --git a/exporter/prometheusremotewriteexporter/README.md b/exporter/prometheusremotewriteexporter/README.md
index 697656320aa..42bd0b2f476 100644
--- a/exporter/prometheusremotewriteexporter/README.md
+++ b/exporter/prometheusremotewriteexporter/README.md
@@ -43,6 +43,8 @@ Example:
 exporters:
   prometheusremotewrite:
     endpoint: "http://some.url:9411/api/prom/push"
+    wal:
+        dir: "DIRECTORY_HERE"
 ```
 
 ## Advanced Configuration