diff --git a/CMakeLists.txt b/CMakeLists.txt
index 567a815a..4e973be0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,7 +40,7 @@ set(UF2_FAMILY_ID_BOOTLOADER 0xd663823c)
 set(CMAKE_EXECUTABLE_SUFFIX .elf)
 add_executable(bootloader)
 
-# SD_VERSION can be overwritten by board.cmake
+# SD_VERSION can be overwritten by board.mk
 if(NOT DEFINED SD_VERSION)
   if(MCU_VARIANT STREQUAL "nrf52833")
     set(SD_VERSION 7.3.0)
@@ -333,4 +333,4 @@ add_custom_target(flash-mbr
 
 add_custom_target(flash-erase
   COMMAND ${NRFJPROG} -f nrf52 --eraseall
-  )
\ No newline at end of file
+  )