diff --git a/CHANGELOG.md b/CHANGELOG.md
index 27e70dd1..31162fc4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@ NEXT-RELEASE Release notes (YYYY-MM-DD)
 ### Fixed
 * Using the `==` operator in a type safe query for a nullable string property would return the incorrect result when algined storage was disabled.
 * Fix compilation issue when building with Bionic due to use of std::tuple (since 2.1.0).
+* Archiving on Xcode would fail due to duplicated alias' when aligned storage was enabled.
 
 ### Enhancements
 * Add ability to use `managed<std::map<std::string, T>>` in type safe queries when comparing a value for a key. e.g.
diff --git a/src/cpprealm/internal/bridge/generator/bridge_type_info_generator.cpp.in b/src/cpprealm/internal/bridge/generator/bridge_type_info_generator.cpp.in
index 11b0943e..ccabbea9 100644
--- a/src/cpprealm/internal/bridge/generator/bridge_type_info_generator.cpp.in
+++ b/src/cpprealm/internal/bridge/generator/bridge_type_info_generator.cpp.in
@@ -9,6 +9,8 @@
 # define KEY '_','_','i','3','8','6'
 #elif defined(__x86_64)
 # define KEY '_','_','x','8','6','_','6','4'
+#elif defined(__x86_64__)
+# define KEY '_','_','x','8','6','_','6','4','_','_'
 #elif defined(__ppc__)
 # define KEY '_','_','p','p','c','_','_'
 #elif defined(__ppc64__)
@@ -19,6 +21,20 @@
 # define KEY '_','_','A','R','M','_','A','R','C','H','_','7','A','_','_'
 #elif defined(__ARM_ARCH_7S__)
 # define KEY '_','_','A','R','M','_','A','R','C','H','_','7','S','_','_'
+#elif defined(_M_X64) 
+# define KEY '_','M','_','X','6','4'
+#elif defined(__amd64__)
+# define KEY '_','_','a','m','d','6','4','_','_'
+#elif defined(_M_IX86)
+# define KEY '_','M','_','I','X','8','6'
+#elif defined(__i386__)
+# define KEY '_','_','i','3','8','6','_','_'
+#elif defined(_M_ARM)
+# define KEY '_','M','_','A','R','M'
+#elif defined(_M_ARM64)
+# define KEY '_','M','_','A','R','M','6','4'
+#elif defined(__arm__)
+# define KEY '_','_','a','r','m','_','_'
 #endif
 
 int main()
@@ -44,5 +60,8 @@ int main()
 
 @TYPE_INFO_QUERY_DECLS@
 
+    static char arch_key[] = {'a','r','c','h','_','k','e','y','_',KEY, '\0'};
+    required += arch_key[0];
+
     return required;
 }
\ No newline at end of file
diff --git a/src/cpprealm/internal/bridge/generator/bridge_type_info_parser.cmake b/src/cpprealm/internal/bridge/generator/bridge_type_info_parser.cmake
index c5b843a2..70ee6574 100644
--- a/src/cpprealm/internal/bridge/generator/bridge_type_info_parser.cmake
+++ b/src/cpprealm/internal/bridge/generator/bridge_type_info_parser.cmake
@@ -1,14 +1,28 @@
-file(STRINGS ${BRIDGE_TYPE_INFO_BIN} compiled_string_literals REGEX "^REALM_TYPE_INFO")
+file(STRINGS ${BRIDGE_TYPE_INFO_BIN} compiled_string_literals REGEX "^(REALM_TYPE_INFO|arch_key_)")
+
+set(regex_realm "REALM_TYPE_INFO:(.+)\\[0*(.*),0*(.*)\\]")
+set(regex_arch "^arch_key_(.+)")
 
-set(regex "REALM_TYPE_INFO:(.+)\\[0*(.*),0*(.*)\\]")
 set(BRIDGE_TYPE_DECLS "")
+set(BRIDGE_TYPE_DECLS_TYPES "")
+set(BRIDGE_TYPE_DECLS_REQUIRES_ELSE_IF OFF)
 
 foreach(i ${compiled_string_literals})
-    if("${i}" MATCHES "${regex}")
-        set(BRIDGE_TYPE_DECLS "${BRIDGE_TYPE_DECLS}    using ${CMAKE_MATCH_1} = std::aligned_storage<${CMAKE_MATCH_2}, ${CMAKE_MATCH_3}>::type;\n")
+    if("${i}" MATCHES "${regex_realm}")
+        set(BRIDGE_TYPE_DECLS_TYPES "${BRIDGE_TYPE_DECLS_TYPES}    using ${CMAKE_MATCH_1} = std::aligned_storage<${CMAKE_MATCH_2}, ${CMAKE_MATCH_3}>::type;\n")
+    elseif("${i}" MATCHES "${regex_arch}")
+        if(BRIDGE_TYPE_DECLS_REQUIRES_ELSE_IF)
+        set(BRIDGE_TYPE_DECLS "${BRIDGE_TYPE_DECLS}#elif defined(${CMAKE_MATCH_1})\n${BRIDGE_TYPE_DECLS_TYPES}")
+        else()
+        set(BRIDGE_TYPE_DECLS "#if defined(${CMAKE_MATCH_1})\n${BRIDGE_TYPE_DECLS_TYPES}")
+        endif()
+        set(BRIDGE_TYPE_DECLS_REQUIRES_ELSE_IF ON)
+        set(BRIDGE_TYPE_DECLS_TYPES "")
     else()
-        message(FATAL_ERROR "Unrecognized type info string: " ${h})
+        message(FATAL_ERROR "Unrecognized type info string: ${i}")
     endif()
 endforeach()
 
+set(BRIDGE_TYPE_DECLS "${BRIDGE_TYPE_DECLS}#endif")
+
 configure_file(${SOURCE_DIR}/bridge_types.hpp.in ${BINARY_DIR}/bridge_types.hpp)