diff --git a/src/test/pegtl/CMakeLists.txt b/src/test/pegtl/CMakeLists.txt
index 0e70393d..c2d95ddb 100644
--- a/src/test/pegtl/CMakeLists.txt
+++ b/src/test/pegtl/CMakeLists.txt
@@ -199,6 +199,7 @@ set(test_sources
   uint32_general.cpp
   uint64_general.cpp
   uint8_general.cpp
+  unaligned_access.cpp
   utf16_general.cpp
   utf32_general.cpp
   utf8_general.cpp
diff --git a/src/test/pegtl/unaligned_access.cpp b/src/test/pegtl/unaligned_access.cpp
new file mode 100644
index 00000000..f0e163d8
--- /dev/null
+++ b/src/test/pegtl/unaligned_access.cpp
@@ -0,0 +1,71 @@
+// Copyright (c) 2024 Dr. Colin Hirsch and Daniel Frey
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at https://www.boost.org/LICENSE_1_0.txt)
+
+#include "test.hpp"
+
+#include <tao/pegtl/uint16.hpp>
+#include <tao/pegtl/uint32.hpp>
+#include <tao/pegtl/uint64.hpp>
+#include <tao/pegtl/uint8.hpp>
+
+namespace TAO_PEGTL_NAMESPACE
+{
+   void test16()
+   {
+      const char data[] = { 2, 2, 1, 2, 2 };
+      base_input<> in( data, sizeof( data ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint16::one< 0x0202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint16::one< 0x0202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( in.empty() );
+   }
+
+   void test32()
+   {
+      const char data[] = { 2, 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2, 2 };
+      base_input<> in( data, sizeof( data ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint32::one< 0x02020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint32::one< 0x02020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint32::one< 0x02020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint32::one< 0x02020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint32::one< 0x02020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( in.empty() );
+   }
+
+   void test64()
+   {
+      const char data[] = { 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2 };
+      base_input<> in( data, sizeof( data ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint64::one< 0x0202020202020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint64::one< 0x0202020202020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint64::one< 0x0202020202020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint64::one< 0x0202020202020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint64::one< 0x0202020202020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint64::one< 0x0202020202020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint64::one< 0x0202020202020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint8::one< 0x01 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( parse< uint64::one< 0x0202020202020202 > >( in ) );
+      TAO_PEGTL_TEST_ASSERT( in.empty() );
+   }
+
+   void unit_test()
+   {
+      test16();
+      test32();
+      test64();
+   }
+
+}  // namespace TAO_PEGTL_NAMESPACE
+
+#include "main.hpp"