diff --git a/prober/histogram.go b/prober/histogram.go
index e9005b452..c544a5f79 100644
--- a/prober/histogram.go
+++ b/prober/histogram.go
@@ -45,6 +45,5 @@ func (h *histogram) add(v float64) {
 			continue
 		}
 		h.bucketedCounts[b] += 1
-		break
 	}
 }
diff --git a/prober/histogram_test.go b/prober/histogram_test.go
index a569167e6..dbb5eda67 100644
--- a/prober/histogram_test.go
+++ b/prober/histogram_test.go
@@ -23,7 +23,7 @@ func TestHistogram(t *testing.T) {
 	if diff := cmp.Diff(h.sum, 7.5); diff != "" {
 		t.Errorf("wrong sum; (-got+want):%v", diff)
 	}
-	if diff := cmp.Diff(h.bucketedCounts, map[float64]uint64{1: 2, 2: 2}); diff != "" {
+	if diff := cmp.Diff(h.bucketedCounts, map[float64]uint64{1: 2, 2: 4}); diff != "" {
 		t.Errorf("wrong bucketedCounts; (-got+want):%v", diff)
 	}
 }