diff --git a/core/emetric/counter_test.go b/core/emetric/counter_test.go
index 0744b3f9..d7c953d4 100644
--- a/core/emetric/counter_test.go
+++ b/core/emetric/counter_test.go
@@ -10,7 +10,7 @@ import (
 
 func TestCounterVec(t *testing.T) {
 	name := "test"
-	label := []string{"hello", "world"}
+	labels := []string{"hello", "world"}
 
 	mockCounterVec := &prometheus.CounterVec{}
 	vec := func(opts prometheus.GaugeOpts, labels []string) *prometheus.CounterVec {
@@ -21,12 +21,11 @@ func TestCounterVec(t *testing.T) {
 			Help:        "test",
 			ConstLabels: map[string]string{"hello": "world"},
 		}
-		labels = []string{"hello", "world"}
 		assert.Equal(t, "ego", opts.Namespace)
 		assert.Equal(t, name, opts.Name)
 		assert.Equal(t, name, opts.Help)
 		return mockCounterVec
 	}
-	out := NewCounterVec(name, label)
+	out := NewCounterVec(name, labels)
 	reflect.DeepEqual(vec, out.CounterVec)
 }
diff --git a/core/emetric/gauge_test.go b/core/emetric/gauge_test.go
index 5553bcfe..a8bef359 100644
--- a/core/emetric/gauge_test.go
+++ b/core/emetric/gauge_test.go
@@ -10,7 +10,7 @@ import (
 
 func TestNewGaugeVec(t *testing.T) {
 	name := "test_"
-	label := []string{"hello_", "world_"}
+	labels := []string{"hello_", "world_"}
 
 	mockGaugeVec := &prometheus.GaugeVec{}
 	vec := func(opts prometheus.GaugeOpts, labels []string) *prometheus.GaugeVec {
@@ -21,12 +21,11 @@ func TestNewGaugeVec(t *testing.T) {
 			Help:        "test_",
 			ConstLabels: map[string]string{"hello": "world"},
 		}
-		labels = []string{"hello_", "world_"}
 		assert.Equal(t, DefaultNamespace, opts.Namespace)
 		assert.Equal(t, name, opts.Name)
 		assert.Equal(t, name, opts.Help)
 		return mockGaugeVec
 	}
-	out := NewGaugeVec(name, label)
+	out := NewGaugeVec(name, labels)
 	reflect.DeepEqual(vec, out.GaugeVec)
 }