diff --git a/acme/account.go b/acme/account.go
index b73c73bc5..a9f2c5421 100644
--- a/acme/account.go
+++ b/acme/account.go
@@ -236,7 +236,7 @@ func (dc *DomainsCertificate) needRenew() bool {
 			return true
 		}
 		// <= 30 days left, renew certificate
-		if crt.NotAfter.Before(time.Now().Add(time.Duration(24 * 30 * time.Hour))) {
+		if crt.NotAfter.Before(time.Now().Add(24 * 30 * time.Hour)) {
 			return true
 		}
 	}
diff --git a/acme/challengeProvider.go b/acme/challengeProvider.go
index 3afd481e2..9a678e4d4 100644
--- a/acme/challengeProvider.go
+++ b/acme/challengeProvider.go
@@ -143,7 +143,7 @@ func pemEncode(data interface{}) []byte {
 	case *x509.CertificateRequest:
 		pemBlock = &pem.Block{Type: "CERTIFICATE REQUEST", Bytes: key.Raw}
 	case []byte:
-		pemBlock = &pem.Block{Type: "CERTIFICATE", Bytes: []byte(data.([]byte))}
+		pemBlock = &pem.Block{Type: "CERTIFICATE", Bytes: data.([]byte)}
 	}
 
 	return pem.EncodeToMemory(pemBlock)
diff --git a/configuration/configuration.go b/configuration/configuration.go
index bc9a1816a..9609eea72 100644
--- a/configuration/configuration.go
+++ b/configuration/configuration.go
@@ -267,12 +267,12 @@ func (dep *DefaultEntryPoints) Set(value string) error {
 
 // Get return the EntryPoints map
 func (dep *DefaultEntryPoints) Get() interface{} {
-	return DefaultEntryPoints(*dep)
+	return *dep
 }
 
 // SetValue sets the EntryPoints map with val
 func (dep *DefaultEntryPoints) SetValue(val interface{}) {
-	*dep = DefaultEntryPoints(val.(DefaultEntryPoints))
+	*dep = val.(DefaultEntryPoints)
 }
 
 // Type is type of the struct
@@ -405,12 +405,12 @@ func toBool(conf map[string]string, key string) bool {
 
 // Get return the EntryPoints map
 func (ep *EntryPoints) Get() interface{} {
-	return EntryPoints(*ep)
+	return *ep
 }
 
 // SetValue sets the EntryPoints map with val
 func (ep *EntryPoints) SetValue(val interface{}) {
-	*ep = EntryPoints(val.(EntryPoints))
+	*ep = val.(EntryPoints)
 }
 
 // Type is type of the struct
diff --git a/provider/ecs/cluster.go b/provider/ecs/cluster.go
index cb602b9be..c9e948d29 100644
--- a/provider/ecs/cluster.go
+++ b/provider/ecs/cluster.go
@@ -21,12 +21,12 @@ func (c *Clusters) Set(str string) error {
 }
 
 // Get Clusters
-func (c *Clusters) Get() interface{} { return Clusters(*c) }
+func (c *Clusters) Get() interface{} { return *c }
 
 // String return slice in a string
 func (c *Clusters) String() string { return fmt.Sprintf("%v", *c) }
 
 // SetValue sets Clusters into the parser
 func (c *Clusters) SetValue(val interface{}) {
-	*c = Clusters(val.(Clusters))
+	*c = val.(Clusters)
 }
diff --git a/provider/kubernetes/namespace.go b/provider/kubernetes/namespace.go
index f6b31bde1..b5bb0ec42 100644
--- a/provider/kubernetes/namespace.go
+++ b/provider/kubernetes/namespace.go
@@ -21,12 +21,12 @@ func (ns *Namespaces) Set(str string) error {
 }
 
 //Get []string
-func (ns *Namespaces) Get() interface{} { return Namespaces(*ns) }
+func (ns *Namespaces) Get() interface{} { return *ns }
 
 //String return slice in a string
 func (ns *Namespaces) String() string { return fmt.Sprintf("%v", *ns) }
 
 //SetValue sets []string into the parser
 func (ns *Namespaces) SetValue(val interface{}) {
-	*ns = Namespaces(val.(Namespaces))
+	*ns = val.(Namespaces)
 }
diff --git a/server/server.go b/server/server.go
index 7c252929e..4277d5f27 100644
--- a/server/server.go
+++ b/server/server.go
@@ -862,7 +862,7 @@ func buildServerTimeouts(globalConfig configuration.GlobalConfiguration) (readTi
 	} else if globalConfig.RespondingTimeouts != nil {
 		idleTimeout = time.Duration(globalConfig.RespondingTimeouts.IdleTimeout)
 	} else {
-		idleTimeout = time.Duration(configuration.DefaultIdleTimeout)
+		idleTimeout = configuration.DefaultIdleTimeout
 	}
 
 	return readTimeout, writeTimeout, idleTimeout
diff --git a/tls/tls.go b/tls/tls.go
index 451cfb511..51f66f9d7 100644
--- a/tls/tls.go
+++ b/tls/tls.go
@@ -80,12 +80,12 @@ func (r *RootCAs) Set(value string) error {
 
 // Get return the RootCAs list
 func (r *RootCAs) Get() interface{} {
-	return RootCAs(*r)
+	return *r
 }
 
 // SetValue sets the RootCAs with val
 func (r *RootCAs) SetValue(val interface{}) {
-	*r = RootCAs(val.(RootCAs))
+	*r = val.(RootCAs)
 }
 
 // Type is type of the struct
diff --git a/types/types.go b/types/types.go
index 0625b2271..3217547bf 100644
--- a/types/types.go
+++ b/types/types.go
@@ -312,7 +312,7 @@ func (cs *Constraints) String() string { return fmt.Sprintf("%+v", *cs) }
 
 //SetValue sets []*Constraint into the parser
 func (cs *Constraints) SetValue(val interface{}) {
-	*cs = Constraints(val.(Constraints))
+	*cs = val.(Constraints)
 }
 
 // Type exports the Constraints type as a string
@@ -427,14 +427,14 @@ func (b *Buckets) Set(str string) error {
 }
 
 //Get []float64
-func (b *Buckets) Get() interface{} { return Buckets(*b) }
+func (b *Buckets) Get() interface{} { return *b }
 
 //String return slice in a string
 func (b *Buckets) String() string { return fmt.Sprintf("%v", *b) }
 
 //SetValue sets []float64 into the parser
 func (b *Buckets) SetValue(val interface{}) {
-	*b = Buckets(val.(Buckets))
+	*b = val.(Buckets)
 }
 
 // TraefikLog holds the configuration settings for the traefik logger.