diff --git a/src/core/SkMallocPixelRef.cpp b/src/core/SkMallocPixelRef.cpp
index 09ec46a..58e52b8 100644
--- a/src/core/SkMallocPixelRef.cpp
+++ b/src/core/SkMallocPixelRef.cpp
@@ -50,7 +50,7 @@
     if (!is_valid(info)) {
         return nullptr;
     }
-    return sk_sp<SkPixelRef>(new SkMallocPixelRef(info, addr, rowBytes, nullptr, nullptr));
+    return sk_make_sp<SkPixelRef>(info.width(), info.height(), addr, rowBytes);
 }