diff --git a/tests/ImageDecodingTest.cpp b/tests/ImageDecodingTest.cpp
index 81f9006..2e0225a 100644
--- a/tests/ImageDecodingTest.cpp
+++ b/tests/ImageDecodingTest.cpp
@@ -333,10 +333,7 @@
     SkASSERT(stream != NULL);
     SkASSERT(stream->rewind());
     SkASSERT(stream->unique());
-    SkColorType colorType;
-    if (!SkBitmapConfigToColorType(bitmap->config(), &colorType)) {
-        return NULL;
-    }
+    SkColorType colorType = bitmap->colorType();
     SkDecodingImageGenerator::Options opts(sampleSize, ditherImage, colorType);
     SkAutoTDelete<SkImageGenerator> gen(
         SkDecodingImageGenerator::Create(stream, opts));