diff --git a/src/gpu/vk/GrVkCopyManager.cpp b/src/gpu/vk/GrVkCopyManager.cpp
index 3093c69..da19d10 100644
--- a/src/gpu/vk/GrVkCopyManager.cpp
+++ b/src/gpu/vk/GrVkCopyManager.cpp
@@ -65,11 +65,10 @@
 
         "layout(set = 1, binding = 0) uniform sampler2D uTextureSampler;"
         "layout(location = 1) in half2 vTexCoord;"
-        "layout(location = 0, index = 0) out half4 fsColorOut;"
 
         "// Copy Program FS\n"
         "void main() {"
-            "fsColorOut = texture(uTextureSampler, vTexCoord);"
+            "sk_FragColor = texture(uTextureSampler, vTexCoord);"
         "}"
     );
 
diff --git a/tests/VkMakeCopyPipelineTest.cpp b/tests/VkMakeCopyPipelineTest.cpp
index f9a0ec6..2c82c03 100644
--- a/tests/VkMakeCopyPipelineTest.cpp
+++ b/tests/VkMakeCopyPipelineTest.cpp
@@ -55,11 +55,10 @@
 
             "layout(set = 1, binding = 0) uniform sampler2D uTextureSampler;"
             "layout(location = 1) in half2 vTexCoord;"
-            "layout(location = 0, index = 0) out half4 fsColorOut;"
 
             "// Copy Program FS\n"
             "void main() {"
-            "fsColorOut = texture(uTextureSampler, vTexCoord);"
+            "sk_FragColor = texture(uTextureSampler, vTexCoord);"
             "}";
 
         SkSL::Program::Settings settings;