diff --git a/build/sdk.atree b/build/sdk.atree
index 013a1a1b1..0c8a1707c 100644
--- a/build/sdk.atree
+++ b/build/sdk.atree
@@ -66,19 +66,15 @@ sdk/templates/icon_hdpi.png platforms/${PLATFORM_NAME}/templates/icon_hdpi.png
 
 # sdk.git files
 # SDK properties
-sdk/files/sdk.properties         platforms/${PLATFORM_NAME}/sdk.properties
-# legacy Ant build rules, copied under the old name
-sdk/files/ant_rules_r1.xml       platforms/${PLATFORM_NAME}/templates/android_rules.xml
-sdk/files/ant_test_rules_r1.xml  platforms/${PLATFORM_NAME}/templates/android_test_rules.xml
-# newer Ant rules.
-sdk/files/ant_rules_r3.xml       platforms/${PLATFORM_NAME}/ant/ant_rules_r3.xml
-sdk/files/ant_test_rules_r3.xml  platforms/${PLATFORM_NAME}/ant/ant_test_rules_r3.xml
-sdk/files/ant_lib_rules_r3.xml   platforms/${PLATFORM_NAME}/ant/ant_lib_rules_r3.xml
-sdk/files/ant_rules_r2.xml       platforms/${PLATFORM_NAME}/ant/ant_rules_r2.xml
-sdk/files/ant_test_rules_r2.xml  platforms/${PLATFORM_NAME}/ant/ant_test_rules_r2.xml
-sdk/files/ant_lib_rules_r2.xml   platforms/${PLATFORM_NAME}/ant/ant_lib_rules_r2.xml
+sdk/files/sdk.properties            platforms/${PLATFORM_NAME}/sdk.properties
+# copy the Ant rules to the platforms and to the tools.
+sdk/files/ant                       platforms/${PLATFORM_NAME}/ant
+sdk/files/ant                       tools/ant
+# also copy the rev1 under the old name/location for legacy reason
+sdk/files/ant/ant_rules_r1.xml      platforms/${PLATFORM_NAME}/templates/android_rules.xml
+sdk/files/ant/ant_test_rules_r1.xml platforms/${PLATFORM_NAME}/templates/android_test_rules.xml
 # layout device definition
-sdk/files/devices.xml            tools/lib/devices.xml
+sdk/files/devices.xml               tools/lib/devices.xml
 
 # emacs support from sdk.git
 sdk/files/android.el tools/lib/android.el