diff --git a/htdocs/contact/card.php b/htdocs/contact/card.php
index 742378a2db3..e39c5502b4d 100644
--- a/htdocs/contact/card.php
+++ b/htdocs/contact/card.php
@@ -40,6 +40,7 @@ require_once DOL_DOCUMENT_ROOT.'/core/class/extrafields.class.php';
 require_once DOL_DOCUMENT_ROOT.'/core/class/doleditor.class.php';
 require_once DOL_DOCUMENT_ROOT. '/core/class/html.form.class.php';
 require_once DOL_DOCUMENT_ROOT.'/user/class/user.class.php';
+require_once DOL_DOCUMENT_ROOT . '/categories/class/categorie.class.php';
 $langs->load("companies");
 $langs->load("users");
 $langs->load("other");
@@ -220,7 +221,17 @@ if (empty($reshook))
             {
                 $error++; $errors=array_merge($errors,($object->error?array($object->error):$object->errors));
                 $action = 'create';
-            }
+			} else {
+				// Categories association
+				$contcats = GETPOST( 'contcats', 'array' );
+				if (!empty( $contcats )) {
+					$cat = new Categorie( $db );
+					foreach ($contcats as $id_category) {
+						$cat->fetch( $id_category );
+						$cat->add_type( $object, 'contact' );
+					}
+				}
+			}
         }
 
         if (! $error && $id > 0)
@@ -313,8 +324,22 @@ if (empty($reshook))
 
             $result = $object->update($contactid, $user);
 
-            if ($result > 0)
-            {
+			if ($result > 0) {
+				// Categories association
+				// First we delete all categories association
+				$sql = 'DELETE FROM ' . MAIN_DB_PREFIX . 'categorie_contact';
+				$sql .= ' WHERE fk_socpeople = ' . $object->id;
+				$db->query( $sql );
+
+				// Then we add the associated categories
+				$categories = GETPOST( 'contcats', 'array' );
+				if (!empty( $categories )) {
+					$cat = new Categorie( $db );
+					foreach ($categories as $id_category) {
+						$cat->fetch( $id_category );
+						$cat->add_type( $object, 'contact' );
+					}
+				}
                 $object->old_lastname='';
                 $object->old_firstname='';
                 $action = 'view';
@@ -580,6 +605,15 @@ else
             print $form->selectarray('priv',$selectarray,(GETPOST("priv",'alpha')?GETPOST("priv",'alpha'):$object->priv),0);
             print '</td></tr>';
 
+			// Categories
+			if (! empty($conf->categorie->enabled)  && ! empty($user->rights->categorie->lire)) {
+				print '<tr><td>' . fieldLabel( 'Categories', 'contcats' ) . '</td><td colspan="3">';
+				$cate_arbo = $form->select_all_categories( Categorie::TYPE_CONTACT, null, 'parent', null, null, 1 );
+				print $form->multiselectarray( 'contcats', $cate_arbo, GETPOST( 'contcats', 'array' ), null, null, null,
+					null, '90%' );
+				print "</td></tr>";
+			}
+
             // Other attributes
             $parameters=array('colspan' => ' colspan="3"');
             $reshook=$hookmanager->executeHooks('formObjectOptions',$parameters,$object,$action);    // Note that $action and $object may have been modified by hook
@@ -819,6 +853,20 @@ else
             print $object->getLibStatut(4);
             print '</td></tr>';
 
+			// Categories
+			if (!empty( $conf->categorie->enabled ) && !empty( $user->rights->categorie->lire )) {
+				print '<tr><td>' . fieldLabel( 'Categories', 'contcats' ) . '</td>';
+				print '<td colspan="3">';
+				$cate_arbo = $form->select_all_categories( Categorie::TYPE_CONTACT, null, null, null, null, 1 );
+				$c = new Categorie( $db );
+				$cats = $c->containing( $object->id, Categorie::TYPE_CONTACT );
+				foreach ($cats as $cat) {
+					$arrayselected[] = $cat->id;
+				}
+				print $form->multiselectarray( 'contcats', $cate_arbo, $arrayselected, '', 0, '', 0, '90%' );
+				print "</td></tr>";
+			}
+
             // Other attributes
             $parameters=array('colspan' => ' colspan="3"');
             $reshook=$hookmanager->executeHooks('formObjectOptions',$parameters,$object,$action);    // Note that $action and $object may have been modified by hook
@@ -1043,6 +1091,15 @@ else
 		print $object->getLibStatut(4);
 		print '</td>';
 		print '</tr>'."\n";
+
+		// Categories
+		if (! empty($conf->categorie->enabled)  && ! empty($user->rights->categorie->lire)) {
+			print '<tr><td>' . $langs->trans( "Categories" ) . '</td>';
+			print '<td colspan="3">';
+			print $form->showCategories( $object->id, 'contact', 1 );
+			print '</td></tr>';
+		}
+
         // Other attributes
         $parameters=array('socid'=>$socid, 'colspan' => ' colspan="3"');
         $reshook=$hookmanager->executeHooks('formObjectOptions',$parameters,$object,$action);    // Note that $action and $object may have been modified by hook
diff --git a/htdocs/core/lib/contact.lib.php b/htdocs/core/lib/contact.lib.php
index 3a50b79edd7..40dab648de1 100644
--- a/htdocs/core/lib/contact.lib.php
+++ b/htdocs/core/lib/contact.lib.php
@@ -87,16 +87,6 @@ function contact_prepare_head(Contact $object)
     $head[$tab][2] = 'documents';
     $tab++;
 
-    if (! empty($conf->categorie->enabled)  && ! empty($user->rights->categorie->lire))
-    {
-		require_once DOL_DOCUMENT_ROOT . '/categories/class/categorie.class.php';
-    	$type = Categorie::TYPE_CONTACT;
-    	$head[$tab][0] = DOL_URL_ROOT.'/categories/categorie.php?id='.$object->id."&type=".$type;
-    	$head[$tab][1] = $langs->trans('Categories');
-    	$head[$tab][2] = 'category';
-    	$tab++;
-    }
-
     // Info
     $head[$tab][0] = DOL_URL_ROOT.'/contact/info.php?id='.$object->id;
 	$head[$tab][1] = $langs->trans("Info");