diff --git a/docs/README.profile.rst b/docs/README.profile.rst
index efcb861..f1fd717 100644
--- a/docs/README.profile.rst
+++ b/docs/README.profile.rst
@@ -137,7 +137,7 @@ The following *custom template identifiers* are understood and will be replaced
 respective variables in ``profiledef.sh``:
 
 * ``%ARCHISO_LABEL%``: Set this using the ``iso_label`` variable in ``profiledef.sh``.
-* ``%INSTALL_DIR%``: Set this using the ``iso_label`` variable in ``profiledef.sh``.
+* ``%INSTALL_DIR%``: Set this using the ``install_dir`` variable in ``profiledef.sh``.
 * ``%ARCH%``: Set this using the ``arch`` variable in ``profiledef.sh``.