diff --git a/impeller/renderer/backend/vulkan/yuv_conversion_vk.cc b/impeller/renderer/backend/vulkan/yuv_conversion_vk.cc
index 2d5ebabb7f9d9..433e243643238 100644
--- a/impeller/renderer/backend/vulkan/yuv_conversion_vk.cc
+++ b/impeller/renderer/backend/vulkan/yuv_conversion_vk.cc
@@ -100,7 +100,7 @@ bool YUVConversionDescriptorVKEqual::operator()(
 
 ImmutableSamplerKey::ImmutableSamplerKey(const SamplerVK& sampler)
     : sampler(sampler.GetDescriptor()) {
-  if (auto conversion = sampler.GetYUVConversion()) {
+  if (const auto& conversion = sampler.GetYUVConversion()) {
     yuv_conversion = conversion->GetDescriptor();
   }
 }