diff --git a/prism/.classpath b/prism/.classpath
index 4d6a256e..29b2d210 100644
--- a/prism/.classpath
+++ b/prism/.classpath
@@ -10,5 +10,6 @@
 	<classpathentry kind="lib" path="lib/pepa.zip"/>
 	<classpathentry kind="lib" path="lib/lpsolve55j.jar"/>
 	<classpathentry kind="lib" path="lib/jas-2013137.jar"/>
+	<classpathentry kind="lib" path="lib/log4j.jar"/>
 	<classpathentry kind="output" path="classes"/>
 </classpath>
diff --git a/prism/lib/log4j.jar b/prism/lib/log4j.jar
new file mode 100644
index 00000000..1595a56e
Binary files /dev/null and b/prism/lib/log4j.jar differ