diff --git a/build.xml b/build.xml
index 5847aa0..504c5c4 100644
--- a/build.xml
+++ b/build.xml
@@ -120,7 +120,8 @@
            destdir="${build.home}/classes"
              debug="${compile.debug}"
        deprecation="${compile.deprecation}"
-          optimize="${compile.optimize}">
+          optimize="${compile.optimize}"
+           target="1.4">
       <classpath refid="compile.classpath"/>
     </javac>
     <copy    todir="${build.home}/classes" filtering="on">
@@ -180,7 +181,8 @@
            destdir="${build.home}/test"
              debug="${compile.debug}"
        deprecation="${compile.deprecation}"
-          optimize="${compile.optimize}">
+          optimize="${compile.optimize}"
+           target="1.4">
       <classpath refid="test.classpath"/>
     </javac>
     <copy    todir="${build.home}/test" filtering="on">