diff --git a/Makefile-ARM b/Makefile-ARM
index db85f90..7fc1279 100644
--- a/Makefile-ARM
+++ b/Makefile-ARM
@@ -107,7 +107,7 @@ endif
 CFLAGS += -Wall
 CFLAGS += -Wstrict-prototypes
 CFLAGS += -Os
-#CFLAGS += -flto
+CFLAGS += -flto
 CFLAGS += -ffunction-sections
 CFLAGS += -fdata-sections
 #CFLAGS += -dM -E # To list all predefined macros into the .o file.