diff --git a/configs/sansa_fuze_plus_defconfig b/configs/sansa_fuze_plus_defconfig
index b207592..188b0ee 100644
--- a/configs/sansa_fuze_plus_defconfig
+++ b/configs/sansa_fuze_plus_defconfig
@@ -22,6 +22,8 @@
 # CONFIG_SPL_FRAMEWORK is not set
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_MEMTEST=y
+CONFIG_SYS_MEMTEST_START=0x40000000
+CONFIG_SYS_MEMTEST_END=0x40400000
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_USB=y