diff --git a/build.properties.sample b/build.properties.sample
index 736b6c2..196f764 100644
--- a/build.properties.sample
+++ b/build.properties.sample
@@ -1,2 +1,8 @@
 # log4j.jar - log4j classes (see http://jakarta.apache.org/log4j)
 log4j.jar=/java/log4j/log4j.jar
+
+#
+# if you want to run the test cases, junit needs to be in the classpath.
+# the build.xml uses a default value so you might not need to set this property.
+#
+# junit.jar=../../jakarta-velocity/build/lib/junit-3.7.jar
\ No newline at end of file