diff --git a/documentation/ref-manual/technical-details.xml b/documentation/ref-manual/technical-details.xml
index 51b9148e3e..106bb2c315 100644
--- a/documentation/ref-manual/technical-details.xml
+++ b/documentation/ref-manual/technical-details.xml
@@ -1005,7 +1005,7 @@
                     <literallayout class='monospaced'>
      mkdir -p /tmp/$USER-weston
      chmod 0700 /tmp/$USER-weston
-     export XDG_RUNTIME_DIR=/tmp/$USER=weston
+     export XDG_RUNTIME_DIR=/tmp/$USER-weston
                     </literallayout></para></listitem>
                 <listitem><para>Launch Weston in the shell:
                     <literallayout class='monospaced'>