diff --git a/tests/ReadWriteAlphaTest.cpp b/tests/ReadWriteAlphaTest.cpp
index 7830669..8ae936e 100644
--- a/tests/ReadWriteAlphaTest.cpp
+++ b/tests/ReadWriteAlphaTest.cpp
@@ -82,7 +82,7 @@
         REPORTER_ASSERT(reporter, match);
 
         // Now try writing on the single channel texture
-        SkAutoTUnref<SkDevice> device(new SkGpuDevice(context, texture->asRenderTarget()));
+        SkAutoTUnref<SkBaseDevice> device(new SkGpuDevice(context, texture->asRenderTarget()));
         SkCanvas canvas(device);
 
         SkPaint paint;