diff --git a/board/snappy/board.h b/board/snappy/board.h
index c3ae6a9e86..49a166132c 100644
--- a/board/snappy/board.h
+++ b/board/snappy/board.h
@@ -123,6 +123,8 @@
 #undef   CONFIG_EXTPOWER_DEBOUNCE_MS
 #define  CONFIG_EXTPOWER_DEBOUNCE_MS 1000
 #define CONFIG_FPU
+/* Region sizes are not power of 2 so we can't use MPU */
+#undef  CONFIG_MPU
 #define CONFIG_HOSTCMD_FLASH_SPI_INFO
 #define CONFIG_I2C
 #define CONFIG_I2C_MASTER