diff --git a/src/wp-includes/pomo/entry.php b/src/wp-includes/pomo/entry.php
index 0e53bc1afd..c24c6c7147 100644
--- a/src/wp-includes/pomo/entry.php
+++ b/src/wp-includes/pomo/entry.php
@@ -86,7 +86,7 @@ if ( ! class_exists( 'Translation_Entry', false ) ) :
 		/**
 		 * Generates a unique key for this entry
 		 *
-		 * @return string|bool the key or false if the entry is empty
+		 * @return string|false the key or false if the entry is empty
 		 */
 		public function key() {
 			if ( null === $this->singular || '' === $this->singular ) {