diff --git a/example-projects/advanced/project.clj b/example-projects/advanced/project.clj
index 7fe656b7..74dc91d7 100644
--- a/example-projects/advanced/project.clj
+++ b/example-projects/advanced/project.clj
@@ -30,6 +30,7 @@
     ; development/debugging, and one with many optimizations for
     ; production use.
     :crossovers [example.crossover]
+    :crossover-jar true
     :builds [
       {:source-path "src-cljs"
        :jar true
diff --git a/plugin/src/leiningen/cljsbuild.clj b/plugin/src/leiningen/cljsbuild.clj
index 3b948c05..88b40b50 100644
--- a/plugin/src/leiningen/cljsbuild.clj
+++ b/plugin/src/leiningen/cljsbuild.clj
@@ -15,7 +15,6 @@
   '[[cljsbuild "0.1.0"]])
 
 (def repl-output-path ".lein-cljsbuild-repl")
-(def crossover-path ".lein-cljsbuild-crossover")
 (def compiler-output-dir-base ".lein-cljsbuild-compiler-")
 
 (def default-global-options
@@ -23,11 +22,9 @@
    :repl-listen-port 9000
    :test-commands {}
    :crossover-path "crossover-cljs"
+   :crossover-jar false
    :crossovers []})
 
-; TODO Add a :crossover-jar boolean option?
-; TODO Write a "migrating from 0.0.x to 0.1.x" doc... :(
-
 (def default-compiler-options
   {:output-to "main.js"
    :optimizations :whitespace
@@ -35,6 +32,7 @@
 
 (def default-build-options
   {:source-path "src-cljs"
+   :jar false
    :compiler default-compiler-options})
 
 (def exit-success 0)
@@ -122,7 +120,7 @@
           (:compiler opts#)))
       '~builds)))
 
-(defn- run-tests [project {:keys [test-commands builds]} args]
+(defn- run-tests [project {:keys [test-commands crossover-path builds]} args]
   (when (> (count args) 1)
     (throw (Exception. "Only expected zero or one arguments.")))
   (let [selected-tests (if (empty? args)
@@ -285,8 +283,12 @@ Available commands:
 (defn- get-filespecs
   "Returns a seq of filespecs for cljs dirs (as passed to leiningen.jar/write-jar)"
   [project]
-  (let [builds (extract-options project)
-        paths (map :source-path (filter :jar builds))]
+  (let [options (extract-options project)
+        builds (:builds options)
+        build-paths (map :source-path (filter :jar builds))
+        paths (if (:crossover-jar options)
+                (conj build-paths (:crossover-path options))
+                build-paths)]
     (mapcat path-filespecs paths)))
 
 (defn compile-hook [task & args]
diff --git a/sample.project.clj b/sample.project.clj
index b5cb5ddc..ba398c57 100644
--- a/sample.project.clj
+++ b/sample.project.clj
@@ -44,8 +44,9 @@
     ; "Sharing Code Between Clojure and Clojurescript" section for more details.
     ; Defaults to the empty vector [].
     :crossovers [example.crossover]
-    ; TODO: Document :crossovers-jar once that's added.
-    ; :crossovers-jar true
+    ; TODO: Document :crossover-jar once that's added.
+    ; :crossover-jar true
+    ; :crossover-path true
     ; The :builds option should be set to a sequence of maps.  Each
     ; map will be treated as a separate, independent, ClojureScript
     ; compiler configuration