diff --git a/build/build.xml b/build/build.xml
index f9dac9239..03756dcaa 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -77,6 +77,7 @@
             includeAntRuntime="no"
             debug="on"
             source="1.3"
+            target="1.2"
         >
             <src path="${basedir}/source" />
             <classpath>
@@ -100,6 +101,7 @@
             includeAntRuntime="no"
             debug="on"
             source="1.3"
+            target="1.2"
         >
             <src path="${basedir}/test" />
             <classpath>