diff --git a/appinfo/routes.php b/appinfo/routes.php
index 8e1d357..e4f211c 100644
--- a/appinfo/routes.php
+++ b/appinfo/routes.php
@@ -11,6 +11,12 @@ return ['resources' =>
 			'url' => '/',
 			'verb' => 'GET'
 		],
+		// Share
+		[
+			'name' => 'share#destroy',
+			'url' => '/share/{noteId}',
+			'verb' => 'DELETE'
+		],
 		// User Settings
 		[
 			'name' => 'settings#setUserValue',
diff --git a/js/script.js b/js/script.js
index f21ce8b..709b16a 100644
--- a/js/script.js
+++ b/js/script.js
@@ -143,6 +143,22 @@ Notes.prototype = {
         });
         return deferred.promise();
     },
+    // Delete shared note.
+    forgetShare: function (note) {
+        var self = this;
+        var deferred = $.Deferred();
+        $.ajax({
+            url: OC.generateUrl('/apps/quicknotes/share') + '/' + note.id,
+            method: 'DELETE'
+        }).done(function () {
+            var index = self._notes.findIndex((aNote) => aNote.id === note.id);
+            self._notes.splice(index, 1);
+            deferred.resolve();
+        }).fail(function () {
+            deferred.reject();
+        });
+        return deferred.promise();
+    },
     // Get the users to share in the notes
     _loadUsersSharing: function () {
         var self = this;
@@ -328,18 +344,33 @@ View.prototype = {
                 t('quicknotes', 'Delete note'),
                 function(result) {
                     if (result) {
-                        self._notes.remove(note).done(function () {
-                            if (self._notes.length() > 0) {
-                                $(".notes-grid").isotope('remove', gridnote.parent())
-                                                .isotope('layout');
-                                self.showAll();
-                                self.renderNavigation();
-                            } else {
-                                self.render();
-                            }
-                        }).fail(function () {
-                            alert('Could not delete note, not found');
-                        });
+                        if (!note.is_shared) {
+                            self._notes.remove(note).done(function () {
+                                if (self._notes.length() > 0) {
+                                     $(".notes-grid").isotope('remove', gridnote.parent())
+                                                    .isotope('layout');
+                                    self.showAll();
+                                    self.renderNavigation();
+                                } else {
+                                    self.render();
+                                }
+                            }).fail(function () {
+                                 alert('Could not delete note, not found');
+                            });
+                        } else {
+                            self._notes.forgetShare(note).done(function () {
+                                if (self._notes.length() > 0) {
+                                     $(".notes-grid").isotope('remove', gridnote.parent())
+                                                    .isotope('layout');
+                                    self.showAll();
+                                    self.renderNavigation();
+                                } else {
+                                    self.render();
+                                }
+                            }).fail(function () {
+                                 alert('Could not delete note, not found');
+                            });
+                        }
                     }
                 },
                 true
diff --git a/lib/Controller/ShareController.php b/lib/Controller/ShareController.php
new file mode 100644
index 0000000..1d5b6fe
--- /dev/null
+++ b/lib/Controller/ShareController.php
@@ -0,0 +1,68 @@
+<?php
+/*
+ * @copyright 2020 Matias De lellis <mati86dl@gmail.com>
+ *
+ * @author 2020 Matias De lellis <mati86dl@gmail.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OCA\QuickNotes\Controller;
+
+use OCP\AppFramework\Http;
+use OCP\AppFramework\Http\JSONResponse;
+use OCP\AppFramework\Controller;
+
+use OCP\IRequest;
+
+use OCA\QuickNotes\Db\NoteShare;
+use OCA\QuickNotes\Db\NoteShareMapper;
+
+
+class ShareController extends Controller {
+
+	private $noteShareMapper;
+	private $userId;
+
+	public function __construct($AppName,
+	                            IRequest        $request,
+	                            NoteShareMapper $noteShareMapper,
+	                            $userId)
+	{
+		parent::__construct($AppName, $request);
+
+		$this->noteShareMapper = $noteShareMapper;
+		$this->userId          = $userId;
+	}
+
+	/**
+	 * @NoAdminRequired
+	 *
+	 * @param int $noteId
+	 */
+	public function destroy(int $noteId): JSONResponse {
+		try {
+			$noteShare = $this->noteShareMapper->findByNoteAndUser($noteId, $this->userId);
+		} catch (DoesNotExistException $e) {
+			return new JSONResponse([], Http::STATUS_NOT_FOUND);
+		}
+
+		$this->noteShareMapper->delete($noteShare);
+
+		return new JSONResponse([]);
+	}
+
+}