diff --git a/src/main/drivers/flash_w25n.c b/src/main/drivers/flash_w25n.c
index c23a1bddfbd..8d62537f005 100644
--- a/src/main/drivers/flash_w25n.c
+++ b/src/main/drivers/flash_w25n.c
@@ -160,7 +160,10 @@ static void w25n_performOneByteCommand(uint8_t command)
 
 static void w25n_performCommandWithPageAddress(uint8_t command, uint32_t pageAddress)
 {
-    uint8_t cmd[4] = { command, 0, (pageAddress >> 8) & 0xff, (pageAddress >> 0) & 0xff};
+    // The 2Gbit devices have 2048 blocks of 64 pages, so their page address needs 17 bits.
+    // Its most significant bit is the lowest bit of the first address byte, which is a don't
+    // care on the 1Gbit W25N01GV where the page address never exceeds 16 bits.
+    uint8_t cmd[4] = { command, (pageAddress >> 16) & 0xff, (pageAddress >> 8) & 0xff, (pageAddress >> 0) & 0xff};
     busTransfer(busDev, NULL, cmd, sizeof(cmd));
 }