diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7725b8116..e165d52e2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -565,10 +565,10 @@ function(fw_add_variant variant_name)
       # Patched binary with pre-baked secondary language
       add_custom_command(
         OUTPUT ${FW_LANG_FINAL}.bin
-        COMMAND ${CMAKE_OBJCOPY} -O binary ${FW_LANG_BASE} ${FW_LANG_FINAL}.bin
+        COMMAND ${CMAKE_COMMAND} -E copy ${FW_LANG_PATCH}.bin ${FW_LANG_FINAL}.bin
         COMMAND "${Python3_EXECUTABLE}" ${CMAKE_SOURCE_DIR}/lang/lang-patchsec.py ${FW_LANG_BASE} ${LANG_BIN}
                 ${FW_LANG_FINAL}.bin
-        DEPENDS ${FW_LANG_BASE} ${LANG_BIN}
+        DEPENDS ${FW_LANG_BASE} ${FW_LANG_PATCH}.bin ${LANG_BIN}
         COMMENT "Generating ${FW_LANG_FINAL}.bin"
         )