diff --git a/src/ImageManipulation.php b/src/ImageManipulation.php
index 02825acb..b53c4926 100644
--- a/src/ImageManipulation.php
+++ b/src/ImageManipulation.php
@@ -1039,7 +1039,7 @@ public function variantParts($variantName)
             throw new InvalidArgumentException('Invalid variant name arguments: ' . $variantName);
         }
 
-        return array_merge([$matches['format']], $args[0]);
+        return array_merge([$matches['format']], $args);
     }
 
     /**
diff --git a/tests/php/ImageTest.php b/tests/php/ImageTest.php
index c44da35d..8eb8d928 100644
--- a/tests/php/ImageTest.php
+++ b/tests/php/ImageTest.php
@@ -419,7 +419,7 @@ public function testVariantParts()
         $image = singleton(Image::class);
         $format = 'Pad';
         $args = [331, 313, '222222', 0];
-        $name = $image->variantName($format, $args);
+        $name = $image->variantName($format, ...$args);
         $this->assertEquals(
             array_merge([$format], $args),
             $image->variantParts($name)
@@ -432,7 +432,7 @@ public function testVariantPartsThrowsOnInvalidName()
         /** @var Image $image */
         $image = singleton(Image::class);
         $args = ['foo'];
-        $name = $image->variantName('Invalid', $args);
+        $name = $image->variantName('Invalid', ...$args);
         $image->variantParts($name);
     }