diff --git a/src/calibre/gui2/dialogs/catalog.ui b/src/calibre/gui2/dialogs/catalog.ui
index 18ba9495b4..209ee23b62 100644
--- a/src/calibre/gui2/dialogs/catalog.ui
+++ b/src/calibre/gui2/dialogs/catalog.ui
@@ -147,7 +147,7 @@
              <property name="toolTip">
               <string>Add the catalog to your calibre library after it is generated.
 Note that if you disable adding of the catalog to the library
-sending of the catalog todevice will not work.</string>
+automatic sending of the catalog to the device will not work.</string>
              </property>
              <property name="text">
               <string>&amp;Add catalog to library</string>