diff --git a/.buckconfig b/.buckconfig
index 272ffbbe122..3f1b5c6d11f 100644
--- a/.buckconfig
+++ b/.buckconfig
@@ -15,3 +15,6 @@
 
 [alias]
   rntester = //packages/rn-tester/android/app:app
+
+[buildfile]
+  includes = //tools/build_defs/oss/preload.bzl
diff --git a/ReactAndroid/src/main/java/com/facebook/react/BUCK b/ReactAndroid/src/main/java/com/facebook/react/BUCK
index 08f8c1176bc..8c87dfbbac2 100644
--- a/ReactAndroid/src/main/java/com/facebook/react/BUCK
+++ b/ReactAndroid/src/main/java/com/facebook/react/BUCK
@@ -1,5 +1,7 @@
 load("//tools/build_defs/oss:rn_defs.bzl", "react_native_dep", "react_native_target", "rn_android_library")
 
+oncall("react_native")
+
 rn_android_library(
     name = "react",
     srcs = glob(["*.java"]),
diff --git a/tools/build_defs/oss/preload.bzl b/tools/build_defs/oss/preload.bzl
new file mode 100644
index 00000000000..2db2223185d
--- /dev/null
+++ b/tools/build_defs/oss/preload.bzl
@@ -0,0 +1,4 @@
+# These are symbols that are available in newer versions of Buck, but not the open source one.
+
+def oncall(_team):
+    pass