diff --git a/AK/ByteBuffer.h b/AK/ByteBuffer.h
index 7f24872cad..61ebf051a6 100644
--- a/AK/ByteBuffer.h
+++ b/AK/ByteBuffer.h
@@ -332,6 +332,14 @@ struct Traits<ByteBuffer> : public GenericTraits<ByteBuffer> {
     {
         return Traits<ReadonlyBytes>::hash(byte_buffer.span());
     }
+    static bool equals(ByteBuffer const& byte_buffer, Bytes const& other)
+    {
+        return byte_buffer.bytes() == other;
+    }
+    static bool equals(ByteBuffer const& byte_buffer, ReadonlyBytes const& other)
+    {
+        return byte_buffer.bytes() == other;
+    }
 };
 
 }
diff --git a/Tests/AK/TestByteBuffer.cpp b/Tests/AK/TestByteBuffer.cpp
index 29ed85d32f..7122b3264a 100644
--- a/Tests/AK/TestByteBuffer.cpp
+++ b/Tests/AK/TestByteBuffer.cpp
@@ -7,6 +7,7 @@
 #include <LibTest/TestCase.h>
 
 #include <AK/ByteBuffer.h>
+#include <AK/Vector.h>
 
 TEST_CASE(equality_operator)
 {
@@ -33,6 +34,18 @@ TEST_CASE(equality_operator)
     EXPECT_EQ(d == d, true);
 }
 
+TEST_CASE(byte_buffer_vector_contains_slow_bytes)
+{
+    Vector<ByteBuffer> vector;
+    ByteBuffer a = ByteBuffer::copy("Hello, friend", 13).release_value();
+    vector.append(a);
+
+    ReadonlyBytes b = "Hello, friend"sv.bytes();
+    Bytes c = a.bytes();
+    EXPECT_EQ(vector.contains_slow(b), true);
+    EXPECT_EQ(vector.contains_slow(c), true);
+}
+
 BENCHMARK_CASE(append)
 {
     ByteBuffer bb;