diff --git a/build.xml b/build.xml
index ef64313b3..2cc238f7f 100644
--- a/build.xml
+++ b/build.xml
@@ -98,7 +98,7 @@
   <target name="javadocs" depends="prepare">
     <mkdir dir="${build.javadocs}"/>
     <javadoc packagenames="${packages}"
-             sourcepath="${src.dir}"
+             sourcepath="${basedir}/${src.dir}"
              destdir="${build.javadocs}"
              author="true"
              version="true"