diff --git a/board/glados/board.h b/board/glados/board.h
index 90503cfa35..cafb497b49 100644
--- a/board/glados/board.h
+++ b/board/glados/board.h
@@ -78,7 +78,7 @@
 #define CONFIG_SPI_FLASH_PORT 1
 #define CONFIG_SPI_FLASH
 #define CONFIG_FLASH_SIZE 524288
-#define CONFIG_SPI_FLASH_W25Q64
+#define CONFIG_SPI_FLASH_W25X40
 
 #define CONFIG_TEMP_SENSOR
 #define CONFIG_TEMP_SENSOR_BD99992GW
diff --git a/board/kunimitsu/board.h b/board/kunimitsu/board.h
index 3f66fe26ac..ee9f5b1bd0 100644
--- a/board/kunimitsu/board.h
+++ b/board/kunimitsu/board.h
@@ -100,7 +100,7 @@
 #define CONFIG_SPI_FLASH_PORT 1
 #define CONFIG_SPI_FLASH
 #define CONFIG_FLASH_SIZE 524288
-#define CONFIG_SPI_FLASH_W25Q64
+#define CONFIG_SPI_FLASH_W25X40
 
 #define CONFIG_TEMP_SENSOR
 #define CONFIG_TEMP_SENSOR_TMP432