diff --git a/src/3rdparty/squirrel/squirrel/sqcompiler.cpp b/src/3rdparty/squirrel/squirrel/sqcompiler.cpp
index 5a434f3298..8ce76f4200 100644
--- a/src/3rdparty/squirrel/squirrel/sqcompiler.cpp
+++ b/src/3rdparty/squirrel/squirrel/sqcompiler.cpp
@@ -15,6 +15,8 @@
 #include "sqvm.h"
 #include "sqtable.h"
 
+#include "../../../core/bit_cast.hpp"
+
 #include "../../../string_func.h"
 
 #include "../../../safeguards.h"
diff --git a/src/3rdparty/squirrel/squirrel/sqfuncstate.cpp b/src/3rdparty/squirrel/squirrel/sqfuncstate.cpp
index 412f848f96..24b6397da3 100644
--- a/src/3rdparty/squirrel/squirrel/sqfuncstate.cpp
+++ b/src/3rdparty/squirrel/squirrel/sqfuncstate.cpp
@@ -12,6 +12,8 @@
 #include "sqopcodes.h"
 #include "sqfuncstate.h"
 
+#include "../../../core/bit_cast.hpp"
+
 #include "../../../safeguards.h"
 
 #ifdef _DEBUG_DUMP
diff --git a/src/3rdparty/squirrel/squirrel/sqvm.cpp b/src/3rdparty/squirrel/squirrel/sqvm.cpp
index 3e0019f406..fdd6ecde7c 100644
--- a/src/3rdparty/squirrel/squirrel/sqvm.cpp
+++ b/src/3rdparty/squirrel/squirrel/sqvm.cpp
@@ -17,6 +17,8 @@
 #include "sqarray.h"
 #include "sqclass.h"
 
+#include "../../../core/bit_cast.hpp"
+
 #include "../../../string_func.h"
 
 #include "../../../safeguards.h"
diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
index 767759da64..f63358ca2f 100644
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -3,6 +3,7 @@ add_files(
     alloc_func.hpp
     alloc_type.hpp
     backup_type.hpp
+    bit_cast.hpp
     bitmath_func.hpp
     checksum_func.hpp
     container_func.hpp
diff --git a/src/core/bit_cast.hpp b/src/core/bit_cast.hpp
new file mode 100644
index 0000000000..866cb397ff
--- /dev/null
+++ b/src/core/bit_cast.hpp
@@ -0,0 +1,35 @@
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/** @file bit_cast.hpp std::bit_cast fallback */
+
+#ifndef BIT_CAST_HPP
+#define BIT_CAST_HPP
+
+#ifdef __cpp_lib_bit_cast
+
+#include <bit>
+
+#else
+
+#include <type_traits>
+
+namespace std {
+template <typename To, typename From>
+constexpr To bit_cast(const From& from) noexcept
+{
+	static_assert(std::is_trivially_constructible_v<To>);
+
+	To to;
+	memcpy(&to, &from, sizeof(To));
+	return to;
+}
+}
+
+#endif
+
+#endif /* BIT_CAST_HPP */