diff --git a/src/classes/mappers/class-tainacan-dublin-core.php b/src/classes/mappers/class-tainacan-dublin-core.php
index 6563765ae..23692ed55 100644
--- a/src/classes/mappers/class-tainacan-dublin-core.php
+++ b/src/classes/mappers/class-tainacan-dublin-core.php
@@ -16,56 +16,6 @@ class Dublin_Core extends Mapper {
 	public $prefixes = [
 		'dc' => 'http://purl.org/dc/elements/1.1/'
 	];
-	public $metadata = [
-		'dc:contributor' => [
-			'label' => 'Contributor'
-		],
-		'dc:coverage' => [
-			'label' => 'Coverage'
-		],
-		'dc:creator' => [
-			'label' => 'Creator',
-		],
-		'dc:date' => [
-			'label' => 'Date',
-			'metadata_type' => 'date'
-		],
-		'dc:description' => [
-			'label' => 'Description',
-			'core_metadatum' => 'description'
-		],
-		'dc:format' => [
-			'label' => 'Format',
-		],
-		'dc:identifier' => [
-			'label' => 'Identifier'
-		],
-		'dc:language' => [
-			'label' => 'Language'
-		],
-		'dc:publisher' => [
-			'label' => 'Publisher'
-		],
-		'dc:relation' => [
-			'label' => 'Relation'
-		],
-		'dc:rights' => [
-			'label' => 'Rights'
-		],
-		'dc:source' => [
-			'label' => 'Source'
-		],
-		'dc:subject' => [
-			'label' => 'Subject'
-		],
-		'dc:title' => [
-			'label' => 'Title',
-			'core_metadatum' => 'title'
-		],
-		'dc:type' => [
-			'label' => 'Type'
-		]
-	];
 	
 	/** XML especial case **/
 	const XML_DC_NAMESPACE = 'http://purl.org/dc/elements/1.1/';
@@ -73,5 +23,76 @@ class Dublin_Core extends Mapper {
 	public $XML_namespace = 'http://purl.org/dc/elements/1.1/';
 	public $XML_append_root = 'rdf:Description'; 
 	/** END: XML especial case **/
+
+	function __construct() {
+		parent::__construct();
+
+		/* Metadata should be set here to allow translable labels */ 
+		$this->metadata = [
+			'dc:contributor' => [
+				/* translators: Label for the dc:contributor field in the Dublin Core standard */
+				'label' => __( 'Contributor', 'tainacan')
+			],
+			'dc:coverage' => [
+				/* translators: Label for the dc:coverage field in the Dublin Core standard */
+				'label' => __( 'Coverage', 'tainacan')
+			],
+			'dc:creator' => [
+				/* translators: Label for the dc:creator field in the Dublin Core standard */
+				'label' => __( 'Creator', 'tainacan')
+			],
+			'dc:date' => [
+				/* translators: Label for the dc:date field in the Dublin Core standard */
+				'label' => __( 'Date', 'tainacan'),
+				'metadata_type' => 'date'
+			],
+			'dc:description' => [
+				/* translators: Label for the dc:description field in the Dublin Core standard */
+				'label' => __( 'Description', 'tainacan'),
+				'core_metadatum' => 'description'
+			],
+			'dc:format' => [
+				/* translators: Label for the dc:format field in the Dublin Core standard */
+				'label' => __( 'Format', 'tainacan')
+			],
+			'dc:identifier' => [
+				/* translators: Label for the dc:identifier field in the Dublin Core standard */
+				'label' => __( 'Identifier', 'tainacan')
+			],
+			'dc:language' => [
+				/* translators: Label for the dc:language field in the Dublin Core standard */
+				'label' => __( 'Language', 'tainacan')
+			],
+			'dc:publisher' => [
+				/* translators: Label for the dc:publisher field in the Dublin Core standard */
+				'label' => __( 'Publisher', 'tainacan')
+			],
+			'dc:relation' => [
+				/* translators: Label for the dc:relation field in the Dublin Core standard */
+				'label' => __( 'Relation', 'tainacan')
+			],
+			'dc:rights' => [
+				/* translators: Label for the dc:rights field in the Dublin Core standard */
+				'label' => __( 'Rights', 'tainacan')
+			],
+			'dc:source' => [
+				/* translators: Label for the dc:source field in the Dublin Core standard */
+				'label' => __( 'Source', 'tainacan')
+			],
+			'dc:subject' => [
+				/* translators: Label for the dc:subject field in the Dublin Core standard */
+				'label' => __( 'Subject', 'tainacan')
+			],
+			'dc:title' => [
+				/* translators: Label for the dc:title field in the Dublin Core standard */
+				'label' => __( 'Title', 'tainacan'),
+				'core_metadatum' => 'title'
+			],
+			'dc:type' => [
+				/* translators: Label for the dc:type field in the Dublin Core standard */
+				'label' => __( 'Type', 'tainacan')
+			]
+		];
+	}
 	
 }
\ No newline at end of file
diff --git a/src/classes/mappers/class-tainacan-mapper.php b/src/classes/mappers/class-tainacan-mapper.php
index 05f1eb322..f637a6eea 100644
--- a/src/classes/mappers/class-tainacan-mapper.php
+++ b/src/classes/mappers/class-tainacan-mapper.php
@@ -66,4 +66,5 @@ abstract class Mapper {
 		return $url;
 	}
 	
+	function __construct() {}
 }
\ No newline at end of file