diff --git a/include/configs/mx51evk.h b/include/configs/mx51evk.h
index febe8d8..207b20c 100644
--- a/include/configs/mx51evk.h
+++ b/include/configs/mx51evk.h
@@ -226,6 +226,4 @@
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_SYS_MMC_ENV_DEV 0
 
-#define CONFIG_OF_LIBFDT
-
 #endif
diff --git a/include/configs/mx53evk.h b/include/configs/mx53evk.h
index 74aee89..78122a7 100644
--- a/include/configs/mx53evk.h
+++ b/include/configs/mx53evk.h
@@ -192,6 +192,4 @@
 #define CONFIG_ENV_IS_IN_MMC
 #define CONFIG_SYS_MMC_ENV_DEV 0
 
-#define CONFIG_OF_LIBFDT
-
 #endif				/* __CONFIG_H */