diff --git a/src/CSSList/CSSList.php b/src/CSSList/CSSList.php
index a747e90c..5be091e6 100644
--- a/src/CSSList/CSSList.php
+++ b/src/CSSList/CSSList.php
@@ -69,9 +69,9 @@ public static function parseList(ParserState $parserState, CSSList $oList): void
             $parserState = new ParserState($parserState, Settings::create());
         }
         $bLenientParsing = $parserState->getSettings()->bLenientParsing;
-        $aComments = [];
+        $comments = [];
         while (!$parserState->isEnd()) {
-            $aComments = \array_merge($aComments, $parserState->consumeWhiteSpace());
+            $comments = \array_merge($comments, $parserState->consumeWhiteSpace());
             $oListItem = null;
             if ($bLenientParsing) {
                 try {
@@ -87,12 +87,12 @@ public static function parseList(ParserState $parserState, CSSList $oList): void
                 return;
             }
             if ($oListItem) {
-                $oListItem->addComments($aComments);
+                $oListItem->addComments($comments);
                 $oList->append($oListItem);
             }
-            $aComments = $parserState->consumeWhiteSpace();
+            $comments = $parserState->consumeWhiteSpace();
         }
-        $oList->addComments($aComments);
+        $oList->addComments($comments);
         if (!$bIsRoot && !$bLenientParsing) {
             throw new SourceException('Unexpected end of document', $parserState->currentLine());
         }
diff --git a/src/OutputFormatter.php b/src/OutputFormatter.php
index 6e68037f..7ef86a3c 100644
--- a/src/OutputFormatter.php
+++ b/src/OutputFormatter.php
@@ -178,11 +178,6 @@ public function removeLastSemicolon($sString)
         return \implode(';', $sString);
     }
 
-    /**
-     * @param array<Commentable> $aComments
-     *
-     * @return string
-     */
     public function comments(Commentable $oCommentable): string
     {
         if (!$this->oFormat->bRenderComments) {
@@ -190,10 +185,10 @@ public function comments(Commentable $oCommentable): string
         }
 
         $sResult = '';
-        $aComments = $oCommentable->getComments();
-        $iLastCommentIndex = \count($aComments) - 1;
+        $comments = $oCommentable->getComments();
+        $iLastCommentIndex = \count($comments) - 1;
 
-        foreach ($aComments as $i => $oComment) {
+        foreach ($comments as $i => $oComment) {
             $sResult .= $oComment->render($this->oFormat);
             $sResult .= $i === $iLastCommentIndex ? $this->spaceAfterBlocks() : $this->spaceBetweenBlocks();
         }
diff --git a/src/Parsing/ParserState.php b/src/Parsing/ParserState.php
index e1e98386..c14674d2 100644
--- a/src/Parsing/ParserState.php
+++ b/src/Parsing/ParserState.php
@@ -231,7 +231,7 @@ public function parseCharacter($bIsForIdentifier)
      */
     public function consumeWhiteSpace(): array
     {
-        $aComments = [];
+        $comments = [];
         do {
             while (\preg_match('/\\s/isSu', $this->peek()) === 1) {
                 $this->consume(1);
@@ -241,16 +241,16 @@ public function consumeWhiteSpace(): array
                     $oComment = $this->consumeComment();
                 } catch (UnexpectedEOFException $e) {
                     $this->iCurrentPosition = $this->iLength;
-                    return $aComments;
+                    return $comments;
                 }
             } else {
                 $oComment = $this->consumeComment();
             }
             if ($oComment !== false) {
-                $aComments[] = $oComment;
+                $comments[] = $oComment;
             }
         } while ($oComment !== false);
-        return $aComments;
+        return $comments;
     }
 
     /**
diff --git a/src/Rule/Rule.php b/src/Rule/Rule.php
index f4033468..9375cef3 100644
--- a/src/Rule/Rule.php
+++ b/src/Rule/Rule.php
@@ -78,13 +78,13 @@ public function __construct($sRule, $lineNumber = 0, $iColNo = 0)
      */
     public static function parse(ParserState $parserState): Rule
     {
-        $aComments = $parserState->consumeWhiteSpace();
+        $comments = $parserState->consumeWhiteSpace();
         $rule = new Rule(
             $parserState->parseIdentifier(!$parserState->comes('--')),
             $parserState->currentLine(),
             $parserState->currentColumn()
         );
-        $rule->setComments($aComments);
+        $rule->setComments($comments);
         $rule->addComments($parserState->consumeWhiteSpace());
         $parserState->consume(':');
         $oValue = Value::parseValue($parserState, self::listDelimiterForRule($rule->getRule()));
diff --git a/src/RuleSet/DeclarationBlock.php b/src/RuleSet/DeclarationBlock.php
index ec4b6d65..c0c26fc5 100644
--- a/src/RuleSet/DeclarationBlock.php
+++ b/src/RuleSet/DeclarationBlock.php
@@ -48,14 +48,14 @@ public function __construct($lineNumber = 0)
      */
     public static function parse(ParserState $parserState, $oList = null)
     {
-        $aComments = [];
+        $comments = [];
         $oResult = new DeclarationBlock($parserState->currentLine());
         try {
             $aSelectorParts = [];
             $sStringWrapperChar = false;
             do {
                 $aSelectorParts[] = $parserState->consume(1)
-                    . $parserState->consumeUntil(['{', '}', '\'', '"'], false, false, $aComments);
+                    . $parserState->consumeUntil(['{', '}', '\'', '"'], false, false, $comments);
                 if (\in_array($parserState->peek(), ['\'', '"'], true) && \substr(\end($aSelectorParts), -1) != '\\') {
                     if ($sStringWrapperChar === false) {
                         $sStringWrapperChar = $parserState->peek();
@@ -78,7 +78,7 @@ public static function parse(ParserState $parserState, $oList = null)
                 throw $e;
             }
         }
-        $oResult->setComments($aComments);
+        $oResult->setComments($comments);
         RuleSet::parseRuleSet($parserState, $oResult);
         return $oResult;
     }