diff --git a/samplecode/SampleSlides.cpp b/samplecode/SampleSlides.cpp
index 98e4e72..7a10246 100644
--- a/samplecode/SampleSlides.cpp
+++ b/samplecode/SampleSlides.cpp
@@ -350,7 +350,7 @@
 
 static void make_tris(Rec* rec) {
     int n = 10;
-    SkRandom    rand;
+    SkMWCRandom    rand;
 
     rec->fMode = SkCanvas::kTriangles_VertexMode;
     rec->fCount = n * 3;