diff --git a/proxmox/config_qemu_guestagent.go b/proxmox/config_qemu_guestagent.go
index d528a9b3..7337985c 100644
--- a/proxmox/config_qemu_guestagent.go
+++ b/proxmox/config_qemu_guestagent.go
@@ -38,7 +38,9 @@ func (newSetting QemuGuestAgent) mapToAPI(currentSettings *QemuGuestAgent) strin
 		params += ",fstrim_cloned_disks=" + boolToIntString(*currentSettings.FsTrim)
 	}
 	if newSetting.Type != nil {
-		params += ",type=" + strings.ToLower(string(*newSetting.Type))
+		if *newSetting.Type != QemuGuestAgentType_None {
+			params += ",type=" + strings.ToLower(string(*newSetting.Type))
+		}
 	} else if currentSettings != nil && currentSettings.Type != nil {
 		params += ",type=" + strings.ToLower(string(*currentSettings.Type))
 	}
diff --git a/proxmox/config_qemu_test.go b/proxmox/config_qemu_test.go
index 77d36ec3..a5e15358 100644
--- a/proxmox/config_qemu_test.go
+++ b/proxmox/config_qemu_test.go
@@ -49,7 +49,10 @@ func Test_ConfigQemu_mapToApiValues(t *testing.T) {
 		{name: `Create Agent.Enable`,
 			config: &ConfigQemu{Agent: &QemuGuestAgent{Enable: util.Pointer(true)}},
 			output: map[string]interface{}{"agent": "1"}},
-		{name: `Create Agent.Type`,
+		{name: `Create Agent.Type=""`,
+			config: &ConfigQemu{Agent: &QemuGuestAgent{Type: util.Pointer(QemuGuestAgentType_None)}},
+			output: map[string]interface{}{"agent": "0"}},
+		{name: `Create Agent.Type="virtio"`,
 			config: &ConfigQemu{Agent: &QemuGuestAgent{Type: util.Pointer(QemuGuestAgentType_VirtIO)}},
 			output: map[string]interface{}{"agent": "0,type=virtio"}},
 		{name: `Create Agent.Freeze`,
@@ -1346,6 +1349,14 @@ func Test_ConfigQemu_mapToApiValues(t *testing.T) {
 			config:        &ConfigQemu{Agent: &QemuGuestAgent{Type: util.Pointer(QemuGuestAgentType_VirtIO)}},
 			currentConfig: ConfigQemu{Agent: &QemuGuestAgent{}},
 			output:        map[string]interface{}{"agent": "0,type=virtio"}},
+		{name: `Update Agent.Type "" !nil`,
+			config:        &ConfigQemu{Agent: &QemuGuestAgent{Type: util.Pointer(QemuGuestAgentType_None)}},
+			currentConfig: ConfigQemu{Agent: &QemuGuestAgent{}},
+			output:        map[string]interface{}{"agent": "0"}},
+		{name: `Update Agent.Type "" nil`,
+			config:        &ConfigQemu{Agent: &QemuGuestAgent{Type: util.Pointer(QemuGuestAgentType_None)}},
+			currentConfig: ConfigQemu{Agent: &QemuGuestAgent{Type: util.Pointer(QemuGuestAgentType_VirtIO)}},
+			output:        map[string]interface{}{"agent": "0"}},
 		{name: `Update Agent.Type nil !nil`,
 			config:        &ConfigQemu{Agent: &QemuGuestAgent{}},
 			currentConfig: ConfigQemu{Agent: &QemuGuestAgent{Type: util.Pointer(QemuGuestAgentType_VirtIO)}},