diff --git a/src/_h5ai/public/ext/README.md b/src/_h5ai/public/ext/README.md
index 954b54c8..7f9460c0 100644
--- a/src/_h5ai/public/ext/README.md
+++ b/src/_h5ai/public/ext/README.md
@@ -1,4 +1,4 @@
 # Extensions
 
 This directory is used for additional script and style files. You have to add
-them manualy to the `resources` section in `_h5ai/conf/options.json`.
+them manualy to the `resources` section in `_h5ai/private/conf/options.json`.