diff --git a/histogram/histogram_test.go b/histogram/histogram_test.go
index 2a2d057..277749d 100644
--- a/histogram/histogram_test.go
+++ b/histogram/histogram_test.go
@@ -6,7 +6,7 @@
 )
 
 func TestHistogram(t *testing.T) {
-	const numPoints = 1e6
+	const numPoints = 1000000
 	const maxBins = 3
 
 	h := New(maxBins)
@@ -25,7 +25,7 @@
 	}
 
 	if g := count(h.Bins()); g != numPoints {
-		t.Fatalf("binned %d points, wanted %f", g, numPoints)
+		t.Fatalf("binned %d points, wanted %d", g, numPoints)
 	}
 }