diff --git a/prometheus/histogram_test.go b/prometheus/histogram_test.go
index 9546b87..306eee9 100644
--- a/prometheus/histogram_test.go
+++ b/prometheus/histogram_test.go
@@ -231,13 +231,6 @@ func TestHistogramVecConcurrency(t *testing.T) {
 
 	rand.Seed(42)
 
-	objectives := make([]float64, 0, len(DefObjectives))
-	for qu := range DefObjectives {
-
-		objectives = append(objectives, qu)
-	}
-	sort.Float64s(objectives)
-
 	it := func(n uint32) bool {
 		mutations := int(n%1e4 + 1e4)
 		concLevel := int(n%7 + 1)
diff --git a/prometheus/registry_test.go b/prometheus/registry_test.go
index e05f2e0..1caeff8 100644
--- a/prometheus/registry_test.go
+++ b/prometheus/registry_test.go
@@ -256,8 +256,9 @@ collected metric "name" { label:<name:"constname" value:"\377" > label:<name:"la
 `)
 
 	summary := prometheus.NewSummary(prometheus.SummaryOpts{
-		Name: "complex",
-		Help: "A metric to check collisions with _sum and _count.",
+		Name:       "complex",
+		Help:       "A metric to check collisions with _sum and _count.",
+		Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
 	})
 	summaryAsText := []byte(`# HELP complex A metric to check collisions with _sum and _count.
 # TYPE complex summary
diff --git a/prometheus/summary.go b/prometheus/summary.go
index f7e92d8..c1475aa 100644
--- a/prometheus/summary.go
+++ b/prometheus/summary.go
@@ -56,16 +56,8 @@ type Summary interface {
 	Observe(float64)
 }
 
-// DefObjectives are the default Summary quantile values.
-//
-// Deprecated: DefObjectives will not be used as the default objectives in
-// v0.10 of the library. The default Summary will have no quantiles then.
-var (
-	DefObjectives = map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}
-
-	errQuantileLabelNotAllowed = fmt.Errorf(
-		"%q is not allowed as label name in summaries", quantileLabel,
-	)
+var errQuantileLabelNotAllowed = fmt.Errorf(
+	"%q is not allowed as label name in summaries", quantileLabel,
 )
 
 // Default values for SummaryOpts.
@@ -121,13 +113,8 @@ type SummaryOpts struct {
 	// Objectives defines the quantile rank estimates with their respective
 	// absolute error. If Objectives[q] = e, then the value reported for q
 	// will be the φ-quantile value for some φ between q-e and q+e.  The
-	// default value is DefObjectives. It is used if Objectives is left at
-	// its zero value (i.e. nil). To create a Summary without Objectives,
-	// set it to an empty map (i.e. map[float64]float64{}).
-	//
-	// Deprecated: Note that the current value of DefObjectives is
-	// deprecated. It will be replaced by an empty map in v0.10 of the
-	// library. Please explicitly set Objectives to the desired value.
+	// default value is an empty map, resulting in a summary without
+	// quantiles.
 	Objectives map[float64]float64
 
 	// MaxAge defines the duration for which an observation stays relevant
@@ -196,7 +183,7 @@ func newSummary(desc *Desc, opts SummaryOpts, labelValues ...string) Summary {
 	}
 
 	if opts.Objectives == nil {
-		opts.Objectives = DefObjectives
+		opts.Objectives = map[float64]float64{}
 	}
 
 	if opts.MaxAge < 0 {
diff --git a/prometheus/summary_test.go b/prometheus/summary_test.go
index 8b1a62e..4dd6fec 100644
--- a/prometheus/summary_test.go
+++ b/prometheus/summary_test.go
@@ -39,8 +39,8 @@ func TestSummaryWithDefaultObjectives(t *testing.T) {
 	if err := summaryWithDefaultObjectives.Write(m); err != nil {
 		t.Error(err)
 	}
-	if len(m.GetSummary().Quantile) != len(DefObjectives) {
-		t.Error("expected default objectives in summary")
+	if len(m.GetSummary().Quantile) != 0 {
+		t.Error("expected no objectives in summary")
 	}
 }
 
@@ -189,6 +189,7 @@ func TestSummaryConcurrency(t *testing.T) {
 	}
 
 	rand.Seed(42)
+	objMap := map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}
 
 	it := func(n uint32) bool {
 		mutations := int(n%1e4 + 1e4)
@@ -202,7 +203,7 @@ func TestSummaryConcurrency(t *testing.T) {
 		sum := NewSummary(SummaryOpts{
 			Name:       "test_summary",
 			Help:       "helpless",
-			Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
+			Objectives: objMap,
 		})
 
 		allVars := make([]float64, total)
@@ -237,14 +238,14 @@ func TestSummaryConcurrency(t *testing.T) {
 			t.Errorf("got sample sum %f, want %f", got, want)
 		}
 
-		objectives := make([]float64, 0, len(DefObjectives))
-		for qu := range DefObjectives {
-			objectives = append(objectives, qu)
+		objSlice := make([]float64, 0, len(objMap))
+		for qu := range objMap {
+			objSlice = append(objSlice, qu)
 		}
-		sort.Float64s(objectives)
+		sort.Float64s(objSlice)
 
-		for i, wantQ := range objectives {
-			ε := DefObjectives[wantQ]
+		for i, wantQ := range objSlice {
+			ε := objMap[wantQ]
 			gotQ := *m.Summary.Quantile[i].Quantile
 			gotV := *m.Summary.Quantile[i].Value
 			min, max := getBounds(allVars, wantQ, ε)
@@ -269,13 +270,14 @@ func TestSummaryVecConcurrency(t *testing.T) {
 	}
 
 	rand.Seed(42)
+	objMap := map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001}
 
-	objectives := make([]float64, 0, len(DefObjectives))
-	for qu := range DefObjectives {
+	objSlice := make([]float64, 0, len(objMap))
+	for qu := range objMap {
 
-		objectives = append(objectives, qu)
+		objSlice = append(objSlice, qu)
 	}
-	sort.Float64s(objectives)
+	sort.Float64s(objSlice)
 
 	it := func(n uint32) bool {
 		mutations := int(n%1e4 + 1e4)
@@ -290,7 +292,7 @@ func TestSummaryVecConcurrency(t *testing.T) {
 			SummaryOpts{
 				Name:       "test_summary",
 				Help:       "helpless",
-				Objectives: map[float64]float64{0.5: 0.05, 0.9: 0.01, 0.99: 0.001},
+				Objectives: objMap,
 			},
 			[]string{"label"},
 		)
@@ -333,8 +335,8 @@ func TestSummaryVecConcurrency(t *testing.T) {
 			if got, want := *m.Summary.SampleSum, sampleSums[i]; math.Abs((got-want)/want) > 0.001 {
 				t.Errorf("got sample sum %f for label %c, want %f", got, 'A'+i, want)
 			}
-			for j, wantQ := range objectives {
-				ε := DefObjectives[wantQ]
+			for j, wantQ := range objSlice {
+				ε := objMap[wantQ]
 				gotQ := *m.Summary.Quantile[j].Quantile
 				gotV := *m.Summary.Quantile[j].Value
 				min, max := getBounds(allVars[i], wantQ, ε)