diff --git a/src/Metadata/MetadataCache.php b/src/Metadata/MetadataCache.php
index 8d992cd..2d7bcd8 100644
--- a/src/Metadata/MetadataCache.php
+++ b/src/Metadata/MetadataCache.php
@@ -13,7 +13,7 @@
 final class MetadataCache
 {
     public function __construct(
-        private readonly ?CacheInterface $cache,
+        private readonly CacheInterface $cache,
         private readonly bool $detectChanges,
     ) {}
 
@@ -25,10 +25,6 @@ public function __construct(
      */
     public function get(string $class, string $name): ?object
     {
-        if ($this->cache === null) {
-            return null;
-        }
-
         /** @psalm-suppress MixedAssignment */
         $metadata = $this->cache->get($this->key($class, $name));
 
@@ -49,10 +45,6 @@ public function get(string $class, string $name): ?object
      */
     public function setMultiple(iterable $metadata): void
     {
-        if ($this->cache === null) {
-            return;
-        }
-
         $metadataByKey = [];
 
         foreach ($metadata as $item) {
diff --git a/src/ReflectionSession.php b/src/ReflectionSession.php
index a976014..d77ef13 100644
--- a/src/ReflectionSession.php
+++ b/src/ReflectionSession.php
@@ -19,6 +19,8 @@
  */
 final class ReflectionSession implements ClassExistenceChecker, ClassReflector
 {
+    private readonly MetadataLazyCollection $metadata;
+
     /**
      * @var array<non-empty-string, true>
      */
@@ -29,17 +31,15 @@ final class ReflectionSession implements ClassExistenceChecker, ClassReflector
      */
     private array $reflectedClasses = [];
 
-    private readonly MetadataLazyCollection $metadata;
-
     /**
      * @internal
      * @psalm-internal Typhoon\Reflection
      */
     public function __construct(
-        private readonly MetadataCache $cache,
         private readonly PhpParserReflector $phpParserReflector,
         private readonly NativeReflector $nativeReflector,
         private readonly ClassLocator $classLocator,
+        private readonly ?MetadataCache $cache,
     ) {
         $this->metadata = new MetadataLazyCollection();
     }
@@ -70,7 +70,7 @@ public function classExists(string $name): bool
             return true;
         }
 
-        $metadata = $this->cache->get(ClassMetadata::class, $name);
+        $metadata = $this->cache?->get(ClassMetadata::class, $name);
 
         if ($metadata !== null) {
             $this->reflectedClasses[$name] = new ClassReflection($this, $metadata);
@@ -136,7 +136,7 @@ public function reflectClass(string|object $nameOrObject): ClassReflection
             return $this->reflectedClasses[$name] = new ClassReflection($this, $metadata);
         }
 
-        $metadata = $this->cache->get(ClassMetadata::class, $name);
+        $metadata = $this->cache?->get(ClassMetadata::class, $name);
 
         if ($metadata !== null) {
             return $this->reflectedClasses[$name] = new ClassReflection($this, $metadata);
@@ -168,7 +168,7 @@ public function reflectClass(string|object $nameOrObject): ClassReflection
 
     public function flush(): void
     {
-        $this->cache->setMultiple($this->metadata);
+        $this->cache?->setMultiple($this->metadata);
         $this->metadata->clear();
         $this->reflectedResources = [];
         $this->reflectedClasses = [];
diff --git a/src/TyphoonReflector.php b/src/TyphoonReflector.php
index ee93485..e78461e 100644
--- a/src/TyphoonReflector.php
+++ b/src/TyphoonReflector.php
@@ -25,10 +25,10 @@
 final class TyphoonReflector
 {
     private function __construct(
-        private readonly MetadataCache $cache,
         private readonly PhpParserReflector $phpParserReflector,
         private readonly NativeReflector $nativeReflector,
         private readonly ClassLocator $classLocator,
+        private readonly ?MetadataCache $cache,
     ) {}
 
     /**
@@ -42,13 +42,13 @@ public static function build(
         ?PhpParser $phpParser = null,
     ): self {
         return new self(
-            cache: new MetadataCache($cache, $detectChanges),
             phpParserReflector: new PhpParserReflector(
                 phpParser: $phpParser ?? (new ParserFactory())->createForNewestSupportedVersion(),
                 phpDocParser: new PhpDocParser($tagPrioritizer),
             ),
             nativeReflector: new NativeReflector(),
             classLocator: new ClassLocatorChain($classLocators ?? self::defaultClassLocators()),
+            cache: $cache === null ? null : new MetadataCache($cache, $detectChanges),
         );
     }