diff --git a/templates/plugin/csv.conf.erb b/templates/plugin/csv.conf.erb
index f5be26350..6b20f5b95 100644
--- a/templates/plugin/csv.conf.erb
+++ b/templates/plugin/csv.conf.erb
@@ -1,4 +1,4 @@
 <Plugin csv>
-  DataDir <%= @datadir %>
+  DataDir "<%= @datadir %>"
   StoreRates <%= @storerates %>
 </Plugin>