diff --git a/Makefile b/Makefile
index 8aac967..9a5abd9 100644
--- a/Makefile
+++ b/Makefile
@@ -721,7 +721,12 @@
 endif
 
 ifneq ($(NEED_SERIAL), )
-LIB_OBJS += serial.o custom_baud.o
+LIB_OBJS += serial.o
+ifeq ($(TARGET_OS), Linux)
+LIB_OBJS += custom_baud_linux.o
+else
+LIB_OBJS += custom_baud.o
+endif
 endif
 
 ifneq ($(NEED_POSIX_SOCKETS), )