diff --git a/api/Android.bp b/api/Android.bp
index 9a14ee6..3fc3991 100644
--- a/api/Android.bp
+++ b/api/Android.bp
@@ -190,12 +190,8 @@
 
 // This produces the same annotations.zip as framework-doc-stubs, but by using
 // outputs from individual modules instead of all the source code.
-genrule {
-    name: "sdk-annotations.zip",
-    srcs: [
-        ":android-non-updatable-doc-stubs{.annotations.zip}",
-        ":all-modules-public-annotations",
-    ],
+genrule_defaults {
+    name: "sdk-annotations-defaults",
     out: ["annotations.zip"],
     tools: [
         "merge_annotation_zips",
@@ -206,6 +202,24 @@
 }
 
 genrule {
+    name: "sdk-annotations.zip",
+    defaults: ["sdk-annotations-defaults"],
+    srcs: [
+        ":android-non-updatable-doc-stubs{.annotations.zip}",
+        ":all-modules-public-annotations",
+    ],
+}
+
+genrule {
+    name: "sdk-annotations-system.zip",
+    defaults: ["sdk-annotations-defaults"],
+    srcs: [
+        ":android-non-updatable-doc-stubs-system{.annotations.zip}",
+        ":all-modules-system-annotations",
+    ],
+}
+
+genrule {
     name: "combined-removed-dex",
     visibility: [
         "//frameworks/base/boot",
diff --git a/api/api.go b/api/api.go
index 2212000..bf6b085 100644
--- a/api/api.go
+++ b/api/api.go
@@ -155,6 +155,13 @@
 	ctx.CreateModule(android.FileGroupFactory, &props)
 }
 
+func createMergedSystemAnnotationsFilegroup(ctx android.LoadHookContext, modules []string) {
+	props := fgProps{}
+	props.Name = proptools.StringPtr("all-modules-system-annotations")
+	props.Srcs = createSrcs(modules, "{.system.annotations.zip}")
+	ctx.CreateModule(android.FileGroupFactory, &props)
+}
+
 func createFilteredApiVersions(ctx android.LoadHookContext, modules []string) {
 	// For the filtered api versions, we prune all APIs except art module's APIs. because
 	// 1) ART apis are available by default to all modules, while other module-to-module deps are
@@ -294,6 +301,7 @@
 	createMergedFrameworkImpl(ctx, bootclasspath)
 
 	createMergedPublicAnnotationsFilegroup(ctx, bootclasspath)
+	createMergedSystemAnnotationsFilegroup(ctx, bootclasspath)
 
 	createFilteredApiVersions(ctx, bootclasspath)