diff --git a/tools/Makefile b/tools/Makefile
index edfa40903d..2ee43dff54 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -158,9 +158,9 @@ fit_check_sign-objs   := $(dumpimage-mkimage-objs) fit_check_sign.o
 file2include-objs := file2include.o
 
 ifneq ($(CONFIG_MX23)$(CONFIG_MX28)$(CONFIG_TOOLS_LIBCRYPTO),)
-# Add CONFIG_MXS into host CFLAGS, so we can check whether or not register
+# Add CFG_MXS into host CFLAGS, so we can check whether or not register
 # the mxsimage support within tools/mxsimage.c .
-HOSTCFLAGS_mxsimage.o += -DCONFIG_MXS
+HOSTCFLAGS_mxsimage.o += -DCFG_MXS
 endif
 
 ifdef CONFIG_TOOLS_LIBCRYPTO
diff --git a/tools/mxsimage.c b/tools/mxsimage.c
index fee022aab4..fbe46c47fa 100644
--- a/tools/mxsimage.c
+++ b/tools/mxsimage.c
@@ -5,7 +5,7 @@
  * Copyright (C) 2012-2013 Marek Vasut <marex@denx.de>
  */
 
-#ifdef CONFIG_MXS
+#ifdef CFG_MXS
 
 #include <errno.h>
 #include <fcntl.h>