diff --git a/src/SchemaNormalizer.php b/src/SchemaNormalizer.php
index ff8929b8..55d907cc 100644
--- a/src/SchemaNormalizer.php
+++ b/src/SchemaNormalizer.php
@@ -181,13 +181,13 @@ private function normalizeObject(
 
         $normalized = new \stdClass();
 
-        /** @var array<string, \stdClass> $objectPropertiesThatAreDefinedBySchema */
-        $objectPropertiesThatAreDefinedBySchema = \array_intersect_key(
+        /** @var array<string, \stdClass> $propertiesDefinedBySchema */
+        $propertiesDefinedBySchema = \array_intersect_key(
             \get_object_vars($schema->properties),
             \get_object_vars($data),
         );
 
-        foreach ($objectPropertiesThatAreDefinedBySchema as $name => $valueSchema) {
+        foreach ($propertiesDefinedBySchema as $name => $valueSchema) {
             $value = $data->{$name};
 
             $valueSchema = $this->resolveSchema(
@@ -203,12 +203,12 @@ private function normalizeObject(
             unset($data->{$name});
         }
 
-        $remainingProperties = \get_object_vars($data);
+        $additionalProperties = \get_object_vars($data);
 
-        if (0 < \count($remainingProperties)) {
-            \ksort($remainingProperties);
+        if (0 < \count($additionalProperties)) {
+            \ksort($additionalProperties);
 
-            foreach ($remainingProperties as $name => $value) {
+            foreach ($additionalProperties as $name => $value) {
                 $normalized->{$name} = $value;
             }
         }