Strange, i think the indent is all messed up here, so hard to read.

But looks like you are defining a function and then immediately calling it?  Why not

```clj
(def errata-search-table
  (let [[header & table] [[:errata :title :type :severity]
                          ["RHEA-2012:2010" "Squirrel_Erratum" "enhancement" "low"]
                          ["RHEA-2012:2011" "Camel_Erratum" "security" "important"]
                          ["RHEA-2012:2012" "Dog_Erratum" "security" "critical"]
                          ["RHEA-2012:2013" "Cow_Erratum" "bugfix" "moderate"]]]
    (map (partial zipmap header) table)))
```