diff --git a/configs/sam3u-ek/ostest/defconfig b/configs/sam3u-ek/ostest/defconfig
index 96fd1cd670..ba35aa8af0 100755
--- a/configs/sam3u-ek/ostest/defconfig
+++ b/configs/sam3u-ek/ostest/defconfig
@@ -192,9 +192,9 @@ CONFIG_USART3_2STOP=0
 # CONFIG_HAVE_LIBM - toolchain supports libm.a
 #
 CONFIG_RRLOAD_BINARY=n
-CONFIG_INTELHEX_BINARY=y
+CONFIG_INTELHEX_BINARY=n
 CONFIG_MOTOROLA_SREC=n
-CONFIG_RAW_BINARY=n
+CONFIG_RAW_BINARY=y
 CONFIG_HAVE_LIBM=n
 
 #