diff --git a/hw/bsp/samd21/boards/cynthion_d21/board.cmake b/hw/bsp/samd21/boards/cynthion_d21/board.cmake
index 89e821edda..fb54b75617 100644
--- a/hw/bsp/samd21/boards/cynthion_d21/board.cmake
+++ b/hw/bsp/samd21/boards/cynthion_d21/board.cmake
@@ -1,5 +1,5 @@
 set(JLINK_DEVICE ATSAMD21G18)
-set(LD_FILE_GNU ${CMAKE_CURRENT_LIST_DIR}/${BOARD}.ld)
+set(LD_FILE_GNU ${CMAKE_CURRENT_LIST_DIR}/samd21g18a_flash.ld)
 
 function(update_board TARGET)
   target_compile_definitions(${TARGET} PUBLIC