diff --git a/src/Form/BlocktabsEditForm.php b/src/Form/BlocktabsEditForm.php
index 4b52ff7..b2e8bab 100644
--- a/src/Form/BlocktabsEditForm.php
+++ b/src/Form/BlocktabsEditForm.php
@@ -77,7 +77,7 @@ class BlocktabsEditForm extends BlocktabsFormBase {
       '#attributes' => array(
         'id' => 'blocktabs-tabs',
       ),
-      '#empty' => t('There are currently no tabs in this blocktabs. Add one by selecting an option below.'),
+      '#empty' => $this->t('There are currently no tabs in this blocktabs. Add one by selecting an option below.'),
       // Render tabs below parent elements.
       '#weight' => 5,
     );
diff --git a/src/Form/TabFormBase.php b/src/Form/TabFormBase.php
index 6c035f5..fe1299a 100644
--- a/src/Form/TabFormBase.php
+++ b/src/Form/TabFormBase.php
@@ -80,7 +80,7 @@ abstract class TabFormBase extends FormBase {
 	
     $form['title'] = array(
       '#type' => 'textfield',
-      '#title' => t('Tab title'),
+      '#title' => $this->t('Tab title'),
       '#default_value' => $this->tab->getTitle(),
       '#required' => TRUE,
     );	
diff --git a/src/Plugin/Tab/BlockContentTab.php b/src/Plugin/Tab/BlockContentTab.php
index fda569f..d7ea1dc 100644
--- a/src/Plugin/Tab/BlockContentTab.php
+++ b/src/Plugin/Tab/BlockContentTab.php
@@ -60,14 +60,14 @@ class BlockContentTab extends ConfigurableTabBase {
     $sql = "SELECT bd.info, b.uuid FROM {block_content_field_data} bd LEFT JOIN {block_content} b ON bd.id = b.id";
     $result = db_query($sql);
     $block_uuid_options = array(
-      '' => t('- Select -'),
+      '' => $this->t('- Select -'),
     );
     foreach ($result as $block_content) {
       $block_uuid_options[$block_content->uuid] = $block_content->info;
     }  
     $form['block_uuid'] = array(
       '#type' => 'select',
-      '#title' => t('Block uuid'),
+      '#title' => $this->t('Block uuid'),
       '#options' => $block_uuid_options,
       '#default_value' => $this->configuration['block_uuid'],
       '#required' => TRUE,
diff --git a/src/Plugin/Tab/BlockTab.php b/src/Plugin/Tab/BlockTab.php
index 6d5ad19..7c81fa0 100644
--- a/src/Plugin/Tab/BlockTab.php
+++ b/src/Plugin/Tab/BlockTab.php
@@ -69,7 +69,7 @@ class BlockTab extends ConfigurableTabBase {
 */	
     $form['block_id'] = array(
       '#type' => 'textfield',
-      '#title' => t('Block id'),
+      '#title' => $this->t('Block id'),
       //'#options' => $block_uuid_options,
       '#default_value' => $this->configuration['block_id'],
       '#required' => TRUE,
diff --git a/src/Plugin/Tab/ViewsTab.php b/src/Plugin/Tab/ViewsTab.php
index 9d5bc5a..5fe094d 100644
--- a/src/Plugin/Tab/ViewsTab.php
+++ b/src/Plugin/Tab/ViewsTab.php
@@ -63,7 +63,7 @@ class ViewsTab extends ConfigurableTabBase {
 	$view_options = Views::getViewsAsOptions(TRUE, 'all', NULL, FALSE, TRUE);
     $form['view_name'] = array(
       '#type' => 'select',
-      '#title' => t('view name'),
+      '#title' => $this->t('view name'),
 	  '#options' => $view_options,
       '#default_value' => $this->configuration['view_name'],
       '#field_suffix' => ' ' ,
@@ -83,7 +83,7 @@ class ViewsTab extends ConfigurableTabBase {
 	}
     $form['view_display'] = array(
       '#type' => 'select',
-      '#title' => t('Display'),
+      '#title' => $this->t('Display'),
       '#default_value' => $this->configuration['view_display'],
       '#prefix' => '<div id="edit-view-display-wrapper">',
       '#suffix' => '</div>',
@@ -93,7 +93,7 @@ class ViewsTab extends ConfigurableTabBase {
     );	
     $form['view_arg'] = array(
       '#type' => 'textfield',
-      '#title' => t('Argument'),
+      '#title' => $this->t('Argument'),
       '#default_value' => $this->configuration['view_arg'],
       '#field_suffix' => ' ' ,