diff --git a/de.prob.core/.classpath b/de.prob.core/.classpath
index 9b292107a7a905968274c717bb253ca02e3913f2..0e660843d5934907cbf4e16f5a231e34d19ff022 100644
--- a/de.prob.core/.classpath
+++ b/de.prob.core/.classpath
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
+	<classpathentry exported="true" kind="lib" path="lib/dependencies/xstream-1.2.2.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/dependencies/answerparser-2.4.8-SNAPSHOT.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/dependencies/bparser-2.4.8-SNAPSHOT.jar"/>
 	<classpathentry exported="true" kind="lib" path="lib/dependencies/cliparser-2.4.8-SNAPSHOT.jar"/>
diff --git a/de.prob.core/META-INF/MANIFEST.MF b/de.prob.core/META-INF/MANIFEST.MF
index 6a32a3132ab653879abc7ac6275c5fed636406a5..956daf6d6a510029b442335c3c98624693492895 100644
--- a/de.prob.core/META-INF/MANIFEST.MF
+++ b/de.prob.core/META-INF/MANIFEST.MF
@@ -102,4 +102,5 @@ Bundle-ClassPath: .,
  lib/dependencies/ltlparser-2.4.8-SNAPSHOT.jar,
  lib/dependencies/parserbase-2.4.8-SNAPSHOT.jar,
  lib/dependencies/prologlib-2.4.8-SNAPSHOT.jar,
- lib/dependencies/unicode-2.4.8-SNAPSHOT.jar
+ lib/dependencies/unicode-2.4.8-SNAPSHOT.jar,
+ lib/dependencies/xstream-1.2.2.jar
diff --git a/de.prob.core/build.properties b/de.prob.core/build.properties
index 0a0b45bd564599a42834dd45e0bf74c1ad95c26b..49631deba8862122aa150b97ef613580e64c4e54 100644
--- a/de.prob.core/build.properties
+++ b/de.prob.core/build.properties
@@ -4,6 +4,7 @@ bin.includes = META-INF/,\
                plugin.xml,\
                .,\
                prob/,\
-               lib/
+               lib/,\
+               lib/dependencies/xstream-1.2.2.jar