diff --git a/application/controllers/Backend_api.php b/application/controllers/Backend_api.php
index 2ab0f963..2cb69bc9 100755
--- a/application/controllers/Backend_api.php
+++ b/application/controllers/Backend_api.php
@@ -496,7 +496,7 @@ class Backend_api extends EA_Controller {
             $provider = $this->providers_model->find($unavailable['id_users_provider']);
 
             // Add appointment
-            $unavailable['id'] = $this->appointments_model->add_unavailable($unavailable);
+            $unavailable['id'] = $this->appointments_model->save_unavailable($unavailable);
             $unavailable = $this->appointments_model->find($unavailable['id']); // fetch all inserted data
 
             // Google Sync
@@ -514,7 +514,7 @@ class Backend_api extends EA_Controller {
                     {
                         $google_event = $this->google_sync->add_unavailable($provider, $unavailable);
                         $unavailable['id_google_calendar'] = $google_event->id;
-                        $this->appointments_model->add_unavailable($unavailable);
+                        $this->appointments_model->save_unavailable($unavailable);
                     }
                     else
                     {
diff --git a/application/controllers/api/v1/Unavailabilities.php b/application/controllers/api/v1/Unavailabilities.php
index b5c01c25..f4eefe5c 100644
--- a/application/controllers/api/v1/Unavailabilities.php
+++ b/application/controllers/api/v1/Unavailabilities.php
@@ -92,7 +92,7 @@ class Unavailabilities extends API_V1_Controller {
                 unset($unavailability['id']);
             }
 
-            $id = $this->appointments_model->add_unavailable($unavailability);
+            $id = $this->appointments_model->save_unavailable($unavailability);
 
             // Fetch the new object from the database and return it to the client.
             $batch = $this->appointments_model->get(['id' => $id]);
@@ -128,7 +128,7 @@ class Unavailabilities extends API_V1_Controller {
             $baseUnavailability = $batch[0];
             $this->parser->decode($updatedUnavailability, $baseUnavailability);
             $updatedUnavailability['id'] = $id;
-            $id = $this->appointments_model->add_unavailable($updatedUnavailability);
+            $id = $this->appointments_model->save_unavailable($updatedUnavailability);
 
             // Fetch the updated object from the database and return it to the client.
             $batch = $this->appointments_model->get(['id' => $id]);
diff --git a/application/models/Appointments_model.php b/application/models/Appointments_model.php
index bd40bfc1..1503c64e 100644
--- a/application/models/Appointments_model.php
+++ b/application/models/Appointments_model.php
@@ -311,7 +311,7 @@ class Appointments_model extends EA_Model {
      *
      * @throws InvalidArgumentException
      */
-    public function add_unavailable(array $unavailable): int
+    public function save_unavailable(array $unavailable): int
     {
         // Make sure the start date time is before the end date time.
         $start = strtotime($unavailable['start_datetime']);