diff --git a/manual/sub_groups.rst b/manual/sub_groups.rst
index c66dfa5a33..e82dfe8428 100644
--- a/manual/sub_groups.rst
+++ b/manual/sub_groups.rst
@@ -53,7 +53,7 @@ Once a genre exists, that is at least one book has that genre, you can easily ap
 Setup
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-By now, your question might be "How was all of this up?" There are three steps: 1) create the custom column, 2) tell calibre that the new column is to be treated as a hierarchy, and 3) add genres.
+By now, your question might be "How was all of this setup?" There are three steps: 1) create the custom column, 2) tell calibre that the new column is to be treated as a hierarchy, and 3) add genres.
 
 You create the custom column in the usual way, using Preferences -> Add your own columns. This example uses "#genre" as the lookup name and "Genre" as the column heading. The column type is "Comma-separated text, like tags, shown in the tag browser."