diff --git a/cmake/components/rust-{{project-name}}/CMakeLists.txt b/cmake/components/rust-{{project-name}}/CMakeLists.txt
index 331bc47..9c03913 100644
--- a/cmake/components/rust-{{project-name}}/CMakeLists.txt
+++ b/cmake/components/rust-{{project-name}}/CMakeLists.txt
@@ -74,6 +74,7 @@ ExternalProject_Add(
         CARGO_CMAKE_BUILD_ESP_IDF=${idf_path}
         CARGO_CMAKE_BUILD_COMPILER=${CMAKE_C_COMPILER}
         RUSTFLAGS=${ESP_RUSTFLAGS}
+        MCU=${CONFIG_IDF_TARGET}
         cargo build --target ${RUST_TARGET} --target-dir ${CARGO_TARGET_DIR} ${CARGO_BUILD_ARG} ${CARGO_BUILD_STD_ARG}
     INSTALL_COMMAND ""
     BUILD_ALWAYS TRUE