diff --git a/backends/arm/debug/TARGETS b/backends/arm/debug/BUCK
similarity index 65%
rename from backends/arm/debug/TARGETS
rename to backends/arm/debug/BUCK
index a88e3b077cd..bfc28e9df77 100644
--- a/backends/arm/debug/TARGETS
+++ b/backends/arm/debug/BUCK
@@ -1,7 +1,8 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 # @noautodeps
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "schema",
     srcs = [
         "__init__.py",
diff --git a/backends/arm/operator_support/TARGETS b/backends/arm/operator_support/BUCK
similarity index 76%
rename from backends/arm/operator_support/TARGETS
rename to backends/arm/operator_support/BUCK
index 8f6721bd911..b007868866d 100644
--- a/backends/arm/operator_support/TARGETS
+++ b/backends/arm/operator_support/BUCK
@@ -1,6 +1,7 @@
+load("@fbcode_macros//build_defs:build_file_migration.bzl", "fbcode_target", "non_fbcode_target")
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
-runtime.python_library(
+fbcode_target(_kind = runtime.python_library,
     name = "operator_support",
     srcs = glob(["*.py"]),
     deps = [