diff --git a/src/Twig/TwigTemplateConstantExtractor.php b/src/Twig/TwigTemplateConstantExtractor.php
index b4ebfc3eb..a5f4db6c9 100644
--- a/src/Twig/TwigTemplateConstantExtractor.php
+++ b/src/Twig/TwigTemplateConstantExtractor.php
@@ -42,7 +42,7 @@ private function findClassConstantFetchesInFile(string $filePath): array
     {
         $fileContents = FileSystem::read($filePath);
 
-        $constantMatches = Strings::matchAll($fileContents, '#{{\s*constant\(\s*([\'"])(?<constant>.*?)\1#');
+        $constantMatches = Strings::matchAll($fileContents, '#{{.*?\s*constant\(\s*([\'"])(?<constant>.*?)\1#');
 
         $externalClassAccessConstantFetches = [];
         foreach ($constantMatches as $constantMatch) {
diff --git a/tests/Twig/TwigTemplateConstantExtractor/Fixture/twig/some_file.twig b/tests/Twig/TwigTemplateConstantExtractor/Fixture/twig/some_file.twig
index fd7e2ffbd..1c634e63a 100644
--- a/tests/Twig/TwigTemplateConstantExtractor/Fixture/twig/some_file.twig
+++ b/tests/Twig/TwigTemplateConstantExtractor/Fixture/twig/some_file.twig
@@ -3,4 +3,4 @@ Here we use constant, it should stay public:
 {{ constant('Rector\\SwissKnife\\Tests\\Twig\\TwigTemplateConstantExtractor\\Fixture\\SomeTemplateUsedConstant::STAY_PUBLIC') }}
 
 
-We can use it again here: {{ constant('Rector\\SwissKnife\\Tests\\Twig\\TwigTemplateConstantExtractor\\Fixture\\SomeTemplateUsedConstant::STAY_PUBLIC') }}
+We can use it again here: {{ value is constant('Rector\\SwissKnife\\Tests\\Twig\\TwigTemplateConstantExtractor\\Fixture\\SomeTemplateUsedConstant::STAY_PUBLIC') }}