diff --git a/build.xml b/build.xml
index 4e7a6118e..3098bbe39 100644
--- a/build.xml
+++ b/build.xml
@@ -517,6 +517,7 @@ QUICK BUILD (QUICK)
       <include name="**/*.scala"/>
       <compilationpath>
         <pathelement location="${build-quick.dir}/classes/library"/>
+        <pathelement location="${lib.dir}/forkjoin.jar"/>
       </compilationpath>
     </scalacfork>
     <scalacfork