diff --git a/src/machine/CMakeLists.txt b/src/machine/CMakeLists.txt
index e88631044..ecc374e66 100644
--- a/src/machine/CMakeLists.txt
+++ b/src/machine/CMakeLists.txt
@@ -37,6 +37,10 @@ if(LASERXT)
     target_compile_definitions(mch PRIVATE USE_LASERXT)
 endif()
 
+if(OLIVETTI)
+    target_compile_definitions(mch PRIVATE USE_OLIVETTI)
+endif()
+
 if(OPEN_AT)
     target_compile_definitions(mch PRIVATE USE_OPEN_AT)
 endif()