diff --git a/meson.build b/meson.build
index 9d35cc4..4620860 100644
--- a/meson.build
+++ b/meson.build
@@ -294,8 +294,12 @@
 
 # raw serial IO
 if need_serial
-  srcs += 'custom_baud.c'
   srcs += 'serial.c'
+  if host_machine.system() == 'linux'
+    srcs += 'custom_baud_linux.c'
+  else
+    srcs += 'custom_baud.c'
+  endif
 endif
 
 prefix = get_option('prefix')