diff --git a/platformio.ini b/platformio.ini
index d1b884b0..c354de26 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -450,7 +450,7 @@ board_build.partitions = ${esp32.large_partitions}
 board_upload.flash_size = 8MB
 board_upload.maximum_size = 8388608
 ; board_build.f_flash = 80000000L
-; board_build.flash_mode = qio
+board_build.flash_mode = dio
 
 [env:esp32dev_16M]
 board = esp32dev