diff --git a/engine/src/flutter/shell/platform/darwin/ios/BUILD.gn b/engine/src/flutter/shell/platform/darwin/ios/BUILD.gn
index d1cf04b1b6d..184500ed59e 100644
--- a/engine/src/flutter/shell/platform/darwin/ios/BUILD.gn
+++ b/engine/src/flutter/shell/platform/darwin/ios/BUILD.gn
@@ -5,6 +5,7 @@
 assert(is_ios)
 
 import("//build/config/ios/ios_sdk.gni")
+import("//build/toolchain/clang.gni")
 import("//flutter/common/config.gni")
 import("//flutter/shell/gpu/gpu.gni")
 import("//flutter/shell/platform/darwin/common/framework_shared.gni")
diff --git a/engine/src/flutter/shell/platform/embedder/BUILD.gn b/engine/src/flutter/shell/platform/embedder/BUILD.gn
index 2ab3a0dd511..42821991b77 100644
--- a/engine/src/flutter/shell/platform/embedder/BUILD.gn
+++ b/engine/src/flutter/shell/platform/embedder/BUILD.gn
@@ -2,6 +2,7 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+import("//build/toolchain/clang.gni")
 import("//flutter/common/config.gni")
 import("//flutter/shell/gpu/gpu.gni")
 import("//flutter/shell/platform/embedder/embedder.gni")