branch 2.4.0/2.3.1
diff --git a/build.options.txt b/build.options.txt
index c794132..e7c4d2f 100644
--- a/build.options.txt
+++ b/build.options.txt
@@ -5,8 +5,8 @@
 
 [BranchAndJDK]
 #used in build.php for selecting build branch
-#2.4.0=HEAD,/opt/sun-java2-5.0
-2.3.1=HEAD,/opt/sun-java2-5.0
+2.4.0=HEAD,/opt/sun-java2-5.0
+2.3.1=R2_3_maintenance,/opt/sun-java2-5.0
 #2.3.2=R2_3_maintenance,/opt/sun-java2-5.0
 2.2.4=R2_2_maintenance,/opt/sun-java2-1.4
 2.1.3=R2_1_maintenance,/opt/sun-java2-1.4