diff --git a/host.go b/host.go
index d5bfd41..ffaf397 100644
--- a/host.go
+++ b/host.go
@@ -38,6 +38,7 @@ type Host struct {
 
 	// Fields below used only when creating hosts
 	GroupIds    HostGroupIDs   `json:"groups,omitempty"`
+	UserMacros  Macros         `json:"macros,omitempty"`
 	Interfaces  HostInterfaces `json:"interfaces,omitempty"`
 	TemplateIDs TemplateIDs    `json:"templates,omitempty"`
 }
diff --git a/item.go b/item.go
index 5bb0ed9..73685be 100644
--- a/item.go
+++ b/item.go
@@ -44,7 +44,7 @@ const (
 	ExternalCheck ItemType = 10
 	// DatabaseMonitor type
 	DatabaseMonitor ItemType = 11
-	//IPMIAgent type
+	// IPMIAgent type
 	IPMIAgent ItemType = 12
 	// SSHAgent type
 	SSHAgent ItemType = 13
@@ -58,7 +58,7 @@ const (
 	SNMPTrap ItemType = 17
 	// DependentItem type (new in 3.4)
 	DependentItem ItemType = 18
-	//HTTPAgent type (new in 4.0)
+	// HTTPAgent type (new in 4.0)
 	HTTPAgent ItemType = 19
 )
 
diff --git a/lld_rule.go b/lld_rule.go
index 393336d..45736e8 100644
--- a/lld_rule.go
+++ b/lld_rule.go
@@ -34,7 +34,7 @@ type LLDRule struct {
 	AuthType             string        `json:"authtype,omitempty"`
 	DelayFlex            string        `json:"delay_flex,omitempty"`
 	Description          string        `json:"description,omitempty"`
-	Error                string        `json:"error,omitempty"` //Readonly
+	Error                string        `json:"error,omitempty"` // Readonly
 	IpmiSensor           string        `json:"ipmi_sensor,omitempty"`
 	LifeTime             string        `json:"lifetime,omitempty"`
 	Params               string        `json:"params,omitempty"`
diff --git a/macro.go b/macro.go
index 5964155..55747e3 100644
--- a/macro.go
+++ b/macro.go
@@ -4,7 +4,7 @@ package zabbix
 // https://www.zabbix.com/documentation/3.2/manual/api/reference/usermacro/object
 type Macro struct {
 	MacroID   string `json:"hostmacroids,omitempty"`
-	HostID    string `json:"hostid"`
+	HostID    string `json:"hostid,omitemptry"`
 	MacroName string `json:"macro"`
 	Value     string `json:"value"`
 }
@@ -63,7 +63,7 @@ func (api *API) MacrosUpdate(macros Macros) (err error) {
 
 // MacrosDeleteByIDs Wrapper for usermacro.delete
 // Cleans MacroId in all macro elements if call succeed.
-//https://www.zabbix.com/documentation/3.2/manual/api/reference/usermacro/delete
+// https://www.zabbix.com/documentation/3.2/manual/api/reference/usermacro/delete
 func (api *API) MacrosDeleteByIDs(ids []string) (err error) {
 	response, err := api.CallWithError("usermacro.delete", ids)
 
diff --git a/trigger.go b/trigger.go
index 15676a0..526a40d 100644
--- a/trigger.go
+++ b/trigger.go
@@ -57,8 +57,8 @@ type Trigger struct {
 	Description string `json:"description"`
 	Expression  string `json:"expression"`
 	Comments    string `json:"comments"`
-	//TemplateId  string    `json:"templateid"`
-	//Value ValueType `json:""`
+	// TemplateId  string    `json:"templateid"`
+	// Value ValueType `json:""`
 
 	Priority     SeverityType     `json:"priority,string"`
 	Status       StatusType       `json:"status,string"`