diff --git a/cmake/teensy.cmake b/cmake/teensy.cmake
index 241e830..91f18d9 100644
--- a/cmake/teensy.cmake
+++ b/cmake/teensy.cmake
@@ -87,6 +87,7 @@ function(teensy_set_dynamic_properties)
         if(TEENSY_VERSION EQUAL 40)
             set(CPU_DEFINE __IMXRT1062__)
             set(LINKER_FILE ${COREPATH}imxrt1062.ld)
+            set(build_board TEENSY40)
             set(build_flags_ld "-nostdlib -Wl,--gc-sections,--relax ")
             set(build_core teensy4)
             set(build_mcu imxrt1062)