diff --git a/distmv/studentt.go b/distmv/studentst.go
similarity index 100%
rename from distmv/studentt.go
rename to distmv/studentst.go
diff --git a/distmv/studentst_test.go b/distmv/studentst_test.go
index 48ee1cc..2dffa97 100644
--- a/distmv/studentst_test.go
+++ b/distmv/studentst_test.go
@@ -94,7 +94,7 @@ func TestStudentsTRand(t *testing.T) {
 			mean:   []float64{0, 0},
 			cov:    mat64.NewSymDense(2, []float64{1, 0, 0, 1}),
 			nu:     3,
-			tolcov: 5e-2,
+			tolcov: 1e-2,
 		},
 		{
 			mean:   []float64{3, 4},
@@ -113,7 +113,7 @@ func TestStudentsTRand(t *testing.T) {
 		if !ok {
 			t.Fatal("bad test")
 		}
-		nSamples := 1000000
+		nSamples := 10000000
 		dim := len(test.mean)
 		samps := mat64.NewDense(nSamples, dim, nil)
 		for i := 0; i < nSamples; i++ {