diff --git a/src/inc/controllers/Mlp_Dashboard_Widget.php b/src/inc/controllers/Mlp_Dashboard_Widget.php
index feafa56b..909e32d2 100644
--- a/src/inc/controllers/Mlp_Dashboard_Widget.php
+++ b/src/inc/controllers/Mlp_Dashboard_Widget.php
@@ -5,6 +5,14 @@
  */
 class Mlp_Dashboard_Widget {
 
+	/**
+	 * @var string[]
+	 */
+	private $allowed_post_types = array(
+		'post',
+		'page',
+	);
+
 	/**
 	 * @var Inpsyde_Nonce_Validator
 	 */
@@ -66,6 +74,10 @@ public function post_submitbox_misc_actions() {
 
 		$is_translated = $this->is_translated( $post_id );
 
+		if ( ! $this->is_allowed_post( $post_id ) ) {
+			return;
+		}
+
 		/**
 		 * Filters the visibility of the 'Translation completed' checkbox.
 		 *
@@ -261,4 +273,33 @@ private function is_translated( $post_id ) {
 
 		return false;
 	}
+
+	/**
+	 * Check if post type is allowed to be translated.
+	 *
+	 * @param $post_id
+	 *
+	 * @return bool
+	 */
+	private function is_allowed_post( $post_id ) {
+
+		/**
+		 * Filter the allowed post types.
+		 *
+		 * @param string[]                $allowed_post_types Allowed post type names.
+		 * @param Mlp_Translation_Metabox $meta_box           Translation meta box object.
+		 */
+		$allowed = apply_filters(
+			'mlp_allowed_post_types',
+			$this->allowed_post_types,
+			$this
+		);
+
+		$post = get_post( (int) $post_id );
+		if ( ! $post ) {
+			return false;
+		}
+
+		return in_array( $post->post_type, $allowed, true );
+	}
 }
diff --git a/src/inc/controllers/Mlp_Trasher.php b/src/inc/controllers/Mlp_Trasher.php
index 2afca659..5848f9db 100644
--- a/src/inc/controllers/Mlp_Trasher.php
+++ b/src/inc/controllers/Mlp_Trasher.php
@@ -5,6 +5,14 @@
  */
 class Mlp_Trasher {
 
+	/**
+	 * @var string[]
+	 */
+	private $allowed_post_types = array(
+		'post',
+		'page',
+	);
+
 	/**
 	 * @var Mlp_Module_Manager_Interface
 	 */
@@ -65,9 +73,14 @@ public function initialize() {
 	 */
 	public function post_submitbox_misc_actions() {
 
-		$post_id = absint( filter_input( INPUT_GET, 'post' ) );
+		$post_id = $this->get_post_id();
+
+		if ( ! $this->is_allowed_post( $post_id ) ) {
+			return;
+		}
+
 		if ( $post_id ) {
-			// old key
+			// old key.
 			$trash_the_other_posts = (int) get_post_meta( $post_id, 'trash_the_other_posts', true );
 
 			if ( 1 !== $trash_the_other_posts ) {
@@ -195,4 +208,43 @@ private function register_setting() {
 			'description'  => $description,
 		) );
 	}
+
+	/**
+	 * Returns the current post ID, or 0 on failure.
+	 *
+	 * @return int
+	 */
+	private function get_post_id() {
+
+		return absint( filter_input( INPUT_GET, 'post' ) );
+	}
+
+	/**
+	 * Check if post type is allowed to be translated.
+	 *
+	 * @param $post_id
+	 *
+	 * @return bool
+	 */
+	private function is_allowed_post( $post_id ) {
+
+		/**
+		 * Filter the allowed post types.
+		 *
+		 * @param string[]    $allowed_post_types Allowed post type names.
+		 * @param Mlp_Trasher $meta_box           Trasher meta box object.
+		 */
+		$allowed = apply_filters(
+			'mlp_allowed_post_types',
+			$this->allowed_post_types,
+			$this
+		);
+
+		$post = get_post( (int) $post_id );
+		if ( ! $post ) {
+			return false;
+		}
+
+		return in_array( $post->post_type, $allowed, true );
+	}
 }