diff --git a/swift/swift_library.bzl b/swift/swift_library.bzl
index fc9e67dae..a41571b18 100644
--- a/swift/swift_library.bzl
+++ b/swift/swift_library.bzl
@@ -304,6 +304,9 @@ dependent for linking, but artifacts/flags required for compilation (such as
 .swiftmodule files, C headers, and search paths) will not be propagated.
 """,
             ),
+            # TODO(b/301253335): Once AEGs are enabled in Bazel, set the swift toolchain type in the
+            # exec configuration of `plugins` attribute and enable AEGs in swift_library.
+            "_use_auto_exec_groups": attr.bool(default = False),
         },
     ),
     doc = """\