diff --git a/src/Store/InMemoryStore.php b/src/Store/InMemoryStore.php
index f774e89f..20430ffa 100644
--- a/src/Store/InMemoryStore.php
+++ b/src/Store/InMemoryStore.php
@@ -227,4 +227,9 @@ static function (Message $message, int $index) use ($criteria): bool {
             ARRAY_FILTER_USE_BOTH,
         );
     }
+
+    public function clear(): void
+    {
+        $this->messages = [];
+    }
 }
diff --git a/tests/Unit/Store/InMemoryStoreTest.php b/tests/Unit/Store/InMemoryStoreTest.php
index 626918ba..8d4e059e 100644
--- a/tests/Unit/Store/InMemoryStoreTest.php
+++ b/tests/Unit/Store/InMemoryStoreTest.php
@@ -347,4 +347,25 @@ static function () use (&$called): void {
 
         self::assertTrue($called);
     }
+
+    public function testClear(): void
+    {
+        $message1 = (new Message(new ProfileVisited(ProfileId::fromString('1'))))
+            ->withHeader(new StreamHeader('foo'));
+        $message2 = (new Message(new ProfileVisited(ProfileId::fromString('2'))))
+            ->withHeader(new StreamHeader('bar'));
+        $message3 = (new Message(new ProfileVisited(ProfileId::fromString('3'))))
+            ->withHeader(new StreamHeader('bar'));
+        $message4 = (new Message(new ProfileVisited(ProfileId::fromString('3'))));
+
+        $store = new InMemoryStore([$message1, $message2, $message3, $message4]);
+
+        $store->clear();
+
+        $stream = $store->load();
+
+        $messages = iterator_to_array($stream);
+
+        self::assertSame([], $messages);
+    }
 }