diff --git a/build.xml b/build.xml
index df4fc90ea0de9168d190262462244eb3ba380f2e..f994fe1d65c9e5a3e26779b9e3f42ac02d444da0 100644
--- a/build.xml
+++ b/build.xml
@@ -363,6 +363,7 @@
       destdir="javadoc"
       author="true"
       version="true"
+      encoding="iso8859-15"
       Use="true" Splitindex="true" private="true"
       Windowtitle="Alignment API and Server"
       doctitle="Alignment API and Server ${version}"