diff --git a/ports/raspberrypi/boards/adafruit_feather_rp2040/mpconfigboard.h b/ports/raspberrypi/boards/adafruit_feather_rp2040/mpconfigboard.h
index f491a77698..a3124c7e5d 100644
--- a/ports/raspberrypi/boards/adafruit_feather_rp2040/mpconfigboard.h
+++ b/ports/raspberrypi/boards/adafruit_feather_rp2040/mpconfigboard.h
@@ -13,5 +13,5 @@
 // #define DEFAULT_UART_BUS_RX (&pin_PA11)
 // #define DEFAULT_UART_BUS_TX (&pin_PA10)
 
-// Flash chip is GD25Q32 connected over QSPI
-#define TOTAL_FLASH_SIZE (4 * 1024 * 1024)
+// Flash chip is GD25Q64 connected over QSPI
+#define TOTAL_FLASH_SIZE (8 * 1024 * 1024)
diff --git a/ports/raspberrypi/boards/qtpy_rp2040/mpconfigboard.h b/ports/raspberrypi/boards/qtpy_rp2040/mpconfigboard.h
index 3f47784572..f5734b5131 100644
--- a/ports/raspberrypi/boards/qtpy_rp2040/mpconfigboard.h
+++ b/ports/raspberrypi/boards/qtpy_rp2040/mpconfigboard.h
@@ -13,5 +13,5 @@
 // #define DEFAULT_UART_BUS_RX (&pin_PA11)
 // #define DEFAULT_UART_BUS_TX (&pin_PA10)
 
-// Flash chip is GD25Q32 connected over QSPI
-#define TOTAL_FLASH_SIZE (4 * 1024 * 1024)
+// Flash chip is GD25Q64 connected over QSPI
+#define TOTAL_FLASH_SIZE (8 * 1024 * 1024)