diff --git a/etc/settings b/etc/settings
index dcc1a87..5c450b8 100644
--- a/etc/settings
+++ b/etc/settings
@@ -1,5 +1,4 @@
 # -*- shell-script -*- :mode=shellscript:
 
 ISABELLE_DOF_HOME="$COMPONENT"
-ISABELLE_DOCS="$ISABELLE_DOF_HOME/doc":"$ISABELLE_DOCS"
-
+ISABELLE_DOCS="$ISABELLE_DOF_HOME/doc:$ISABELLE_DOCS"