diff --git a/build/sdk.atree b/build/sdk.atree
index 72de93bf2..aaff56c89 100644
--- a/build/sdk.atree
+++ b/build/sdk.atree
@@ -18,6 +18,11 @@
 # These are the files that comprise that SDK
 #
 
+# version files for the SDK updater
+development/tools/scripts/doc_source.properties docs/source.properties
+development/tools/scripts/tools_source.properties tools/source.properties
+development/tools/scripts/platform_source.properties platforms/${PLATFORM_NAME}/source.properties
+
 # host tools from out/host/$(HOST_OS)-$(HOST_ARCH)/
 bin/aapt platforms/${PLATFORM_NAME}/tools/aapt
 bin/aidl platforms/${PLATFORM_NAME}/tools/aidl
diff --git a/tools/scripts/doc_source.properties b/tools/scripts/doc_source.properties
new file mode 100644
index 000000000..f4cb9948d
--- /dev/null
+++ b/tools/scripts/doc_source.properties
@@ -0,0 +1,5 @@
+Pkg.UserSrc=false
+Platform.Version=Donut
+Pkg.Revision=1
+AndroidVersion.CodeName=Donut
+AndroidVersion.ApiLevel=3
diff --git a/tools/scripts/platform_source.properties b/tools/scripts/platform_source.properties
new file mode 100644
index 000000000..82de16276
--- /dev/null
+++ b/tools/scripts/platform_source.properties
@@ -0,0 +1,6 @@
+Pkg.Desc=Android SDK Platform Donut_r1
+Pkg.UserSrc=false
+Platform.Version=Donut
+Pkg.Revision=1
+AndroidVersion.CodeName=Donut
+AndroidVersion.ApiLevel=3
diff --git a/tools/scripts/tools_source.properties b/tools/scripts/tools_source.properties
new file mode 100644
index 000000000..ba79b6c97
--- /dev/null
+++ b/tools/scripts/tools_source.properties
@@ -0,0 +1,2 @@
+Pkg.UserSrc=false
+Pkg.Revision=1