diff --git a/arch/arm/mach-keystone/Makefile b/arch/arm/mach-keystone/Makefile
index 3e076e12ec..6c7c25090a 100644
--- a/arch/arm/mach-keystone/Makefile
+++ b/arch/arm/mach-keystone/Makefile
@@ -9,6 +9,7 @@ obj-y	+= init.o
 obj-y	+= psc.o
 obj-y	+= clock.o
 obj-y	+= mon.o
+CFLAGS_REMOVE_mon.o := $(LTO_CFLAGS)
 ifndef CONFIG_SPL_BUILD
 obj-y	+= cmd_clock.o
 obj-y	+= cmd_mon.o