diff --git a/lib/PhpParser/Comment.php b/lib/PhpParser/Comment.php
index 2cc491b853..b533c59dd8 100644
--- a/lib/PhpParser/Comment.php
+++ b/lib/PhpParser/Comment.php
@@ -3,12 +3,19 @@
 namespace PhpParser;
 
 class Comment implements \JsonSerializable {
+    /** @var string string */
     protected $text;
+    /** @var int */
     protected $startLine;
+    /** @var int */
     protected $startFilePos;
+    /** @var int */
     protected $startTokenPos;
+    /** @var int */
     protected $endLine;
+    /** @var int */
     protected $endFilePos;
+    /** @var int */
     protected $endTokenPos;
 
     /**
diff --git a/lib/PhpParser/ConstExprEvaluator.php b/lib/PhpParser/ConstExprEvaluator.php
index 4ab94995ad..73e59fc516 100644
--- a/lib/PhpParser/ConstExprEvaluator.php
+++ b/lib/PhpParser/ConstExprEvaluator.php
@@ -27,6 +27,7 @@
  * affected by the LC_NUMERIC locale.
  */
 class ConstExprEvaluator {
+    /** @var callable|null */
     private $fallbackEvaluator;
 
     /**
diff --git a/lib/PhpParser/Error.php b/lib/PhpParser/Error.php
index 963f68c54c..443d615288 100644
--- a/lib/PhpParser/Error.php
+++ b/lib/PhpParser/Error.php
@@ -3,7 +3,9 @@
 namespace PhpParser;
 
 class Error extends \RuntimeException {
+    /** @var string */
     protected $rawMessage;
+    /** @var array<string, mixed> */
     protected $attributes;
 
     /**
diff --git a/lib/PhpParser/Node.php b/lib/PhpParser/Node.php
index 827b3aeb37..43f9deb96b 100644
--- a/lib/PhpParser/Node.php
+++ b/lib/PhpParser/Node.php
@@ -13,7 +13,7 @@ public function getType(): string;
     /**
      * Gets the names of the sub nodes.
      *
-     * @return array Names of sub nodes
+     * @return string[] Names of sub nodes
      */
     public function getSubNodeNames(): array;
 
@@ -137,7 +137,7 @@ public function getAttribute(string $key, $default = null);
     /**
      * Returns all the attributes of this node.
      *
-     * @return array
+     * @return array<string, mixed>
      */
     public function getAttributes(): array;