diff --git a/build/scripts/layouts.gant b/build/scripts/layouts.gant
index 75b46b1aa8ef..87ce61b2bf04 100644
--- a/build/scripts/layouts.gant
+++ b/build/scripts/layouts.gant
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2000-2012 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 import static org.jetbrains.jps.idea.IdeaProjectLoader.guessHome
 
 includeTargets << new File("${guessHome(this)}/build/scripts/utils.gant")
@@ -468,6 +483,7 @@ def reorder(String home, String targetDirectory) {
       classpath {
         pathelement(location: util.output)
         pathelement(location: "$home/lib/jna.jar")
+        pathelement(location: "$home/lib/trove4j.jar")
       }
     }
   }
diff --git a/build/update.xml b/build/update.xml
index 4bdc3584b15c..ebef6ac3cc2b 100644
--- a/build/update.xml
+++ b/build/update.xml
@@ -51,6 +51,7 @@
         <classpath>
           <pathelement location="${modules.output}/production/util"/>
           <pathelement location="${project.home}/lib/jna.jar"/>
+          <pathelement location="${project.home}/lib/trove4j.jar"/>
         </classpath>
       </java>
     </sequential>