diff --git a/docs/sources/reference/builder.md b/docs/sources/reference/builder.md
index 2678a87a19..2f36942ce6 100644
--- a/docs/sources/reference/builder.md
+++ b/docs/sources/reference/builder.md
@@ -642,7 +642,7 @@ For example you might add something like this:
 
     # Install vnc, xvfb in order to create a 'fake' display and firefox
     RUN apt-get update && apt-get install -y x11vnc xvfb firefox
-    RUN mkdir /.vnc
+    RUN mkdir ~/.vnc
     # Setup a password
     RUN x11vnc -storepasswd 1234 ~/.vnc/passwd
     # Autostart firefox (might not be the best way, but it does the trick)