diff --git a/CMakeLists.txt b/CMakeLists.txt
index 41989489..ae6b1c5e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -33,7 +33,7 @@ if(BUILD_RESOURCES)
 endif()
 
 set(TARGET_DEVICE "PINETIME" CACHE STRING "Target device")
-set_property(CACHE TARGET_DEVICE PROPERTY STRINGS PINETIME MOY-TFK5 MOY-TIN5 MOY-TON5 MOY-UNK)
+set_property(CACHE TARGET_DEVICE PROPERTY STRINGS PINETIME MOY_TFK5 MOY_TIN5 MOY_TON5 MOY_UNK)
 
 set(PROJECT_GIT_COMMIT_HASH "")