diff --git a/recipes-slint/slint/slint-cpp-v2.inc b/recipes-slint/slint/slint-cpp-v2.inc
index ef202ed..cb98320 100644
--- a/recipes-slint/slint/slint-cpp-v2.inc
+++ b/recipes-slint/slint/slint-cpp-v2.inc
@@ -77,7 +77,8 @@ do_install() {
 OECMAKE_C_COMPILER = "${RUST_TARGET_CC}"
 OECMAKE_CXX_COMPILER = "${RUST_TARGET_CXX}"
 
-EXTRA_OECMAKE:append = " -DRust_CARGO_TARGET=${HOST_SYS}"
+RUST_CARGO_TARGET = "${@d.getVar('RUST_HOST_SYS') or d.getVar('HOST_SYS')}"
+EXTRA_OECMAKE:append = " -DRust_CARGO_TARGET=${RUST_CARGO_TARGET}"
 
 EXTRA_OECMAKE:append = " -DFETCHCONTENT_FULLY_DISCONNECTED=OFF"
 EXTRA_OECMAKE:append = " -DBUILD_TESTING=OFF -DSLINT_BUILD_EXAMPLES=OFF -DCMAKE_BUILD_TYPE=RelWithDebInfo"