diff --git a/samplecode/SampleVertices.cpp b/samplecode/SampleVertices.cpp
index 53db2ea..d71a1ae 100644
--- a/samplecode/SampleVertices.cpp
+++ b/samplecode/SampleVertices.cpp
@@ -144,7 +144,7 @@
 
     void make_tris(Rec* rec) {
         int n = 10;
-        SkRandom    rand;
+        SkMWCRandom    rand;
 
         rec->fMode = SkCanvas::kTriangles_VertexMode;
         rec->fCount = n * 3;