diff --git a/shell/common/shell_test_platform_view_vulkan.cc b/shell/common/shell_test_platform_view_vulkan.cc
index 4c21c2dfba36e24800dabc39a130a0b4fd4473b3..3ed4193aa258459e927c185e1d91fc001063e17b 100644
--- a/shell/common/shell_test_platform_view_vulkan.cc
+++ b/shell/common/shell_test_platform_view_vulkan.cc
@@ -60,7 +60,9 @@ ShellTestPlatformViewVulkan::OffScreenSurface::OffScreenSurface(
   }
 
   // Create the application instance.
-  std::vector<std::string> extensions = {};
+  std::vector<std::string> extensions = {
+      VK_KHR_EXTERNAL_SEMAPHORE_CAPABILITIES_EXTENSION_NAME,
+  };
 
   application_ = std::make_unique<vulkan::VulkanApplication>(
       *vk_, "FlutterTest", std::move(extensions));