diff --git a/.classpath b/.classpath
index f3a024c95..955ab70a2 100644
--- a/.classpath
+++ b/.classpath
@@ -10,6 +10,7 @@
 	<classpathentry kind="src" path="extensions/jython/src"/>
 	<classpathentry kind="src" path="extensions/pc-axis/src"/>
 	<classpathentry kind="src" path="extensions/sample/src"/>
+	<classpathentry kind="src" path="extensions/wikidata/src"/>
 	<classpathentry kind="src" path="main/tests/server/src"/>
 	<classpathentry exported="true" kind="lib" path="main/webapp/WEB-INF/lib/ant-tools-1.8.0.jar"/>
 	<classpathentry exported="true" kind="lib" path="main/webapp/WEB-INF/lib/arithcode-1.1.jar"/>
diff --git a/extensions/build.xml b/extensions/build.xml
index ed44ecab7..67839a2bd 100644
--- a/extensions/build.xml
+++ b/extensions/build.xml
@@ -13,7 +13,8 @@
     <ant dir="jython/" target="build" />
     <ant dir="gdata/" target="build" />
     <ant dir="pc-axis/" target="build" />
-  	<ant dir="database/" target="build" />
+    <ant dir="database/" target="build" />
+    <ant dir="wikidata/" target="build" />
   </target>
 
   <target name="clean">
@@ -22,12 +23,13 @@
     <ant dir="jython/" target="clean" />
     <ant dir="gdata/" target="clean" />
     <ant dir="pc-axis/" target="clean" />
-  	<ant dir="database/" target="clean" />
+    <ant dir="database/" target="clean" />
+    <ant dir="wikidata/" target="clean" />
   </target>
 
   <target name="test">
     <echo message="Testing extensions" />
     <ant dir="jython/" target="test" />
-  	<ant dir="database/" target="test" />
+    <ant dir="database/" target="test" />
   </target>
 </project>
diff --git a/extensions/wikidata/module/MOD-INF/lib-src/wdtk-datamodel-0.8.0-SNAPSHOT-sources.jar b/extensions/wikidata/module/MOD-INF/lib-src/wdtk-datamodel-0.8.0-SNAPSHOT-sources.jar
new file mode 100644
index 000000000..b76ff1566
Binary files /dev/null and b/extensions/wikidata/module/MOD-INF/lib-src/wdtk-datamodel-0.8.0-SNAPSHOT-sources.jar differ
diff --git a/extensions/wikidata/module/MOD-INF/lib/wdtk-datamodel-0.8.0-SNAPSHOT-jar-with-dependencies.jar b/extensions/wikidata/module/MOD-INF/lib/wdtk-datamodel-0.8.0-SNAPSHOT-jar-with-dependencies.jar
new file mode 100644
index 000000000..ea43b9a15
Binary files /dev/null and b/extensions/wikidata/module/MOD-INF/lib/wdtk-datamodel-0.8.0-SNAPSHOT-jar-with-dependencies.jar differ