diff --git a/bench/MatrixConvolutionBench.cpp b/bench/MatrixConvolutionBench.cpp
index 161fc23..82ac78c 100644
--- a/bench/MatrixConvolutionBench.cpp
+++ b/bench/MatrixConvolutionBench.cpp
@@ -39,7 +39,7 @@
         SkPaint paint;
         this->setupPaint(&paint);
         paint.setAntiAlias(true);
-        SkRandom rand;
+        SkMWCRandom rand;
         for (int i = 0; i < SkBENCHLOOP(3); i++) {
             SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
                                       rand.nextUScalar1() * 400);