diff --git a/README.md b/README.md
index 7c56f1570..985abc107 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 ## Building
 
 Most people will probably want the LV2 plugin with `libsndfile` built-in statically.
-You can directly build it this way through Docker:
+You can directly build it this way through Docker by calling these in an *empty* directory :
 ```
 wget https://raw.githubusercontent.com/sfztools/sfizz/master/scripts/Dockerfile
 wget https://raw.githubusercontent.com/sfztools/sfizz/master/scripts/x64-linux-hidden.cmake