diff --git a/CMakeLists.txt b/CMakeLists.txt
index cfadaf480..997bfd51f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -710,6 +710,8 @@ target_link_libraries(zigcpp LINK_PUBLIC
 
 if(CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "AMD64")
   set(HOST_TARGET_ARCH "x86_64")
+elseif(CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "amd64")
+  set(HOST_TARGET_ARCH "x86_64")
 elseif(CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "arm64")
   set(HOST_TARGET_ARCH "aarch64")
 elseif(CMAKE_HOST_SYSTEM_PROCESSOR STREQUAL "ARM64")