diff --git a/core/embed/trezorhal/boards/trezor_t3t1_revE.h b/core/embed/trezorhal/boards/trezor_t3t1_revE.h
index 44a24a243..95e11f796 100644
--- a/core/embed/trezorhal/boards/trezor_t3t1_revE.h
+++ b/core/embed/trezorhal/boards/trezor_t3t1_revE.h
@@ -4,7 +4,7 @@
 #define DISPLAY_RESX 240
 #define DISPLAY_RESY 240
 
-#define VDD_1V8 1
+#define VDD_3V3 1
 
 #define USE_SD_CARD 1
 #define USE_I2C 1
diff --git a/core/embed/trezorhal/boards/trezor_t3t1_v4.h b/core/embed/trezorhal/boards/trezor_t3t1_v4.h
index fa5807b00..a43dee378 100644
--- a/core/embed/trezorhal/boards/trezor_t3t1_v4.h
+++ b/core/embed/trezorhal/boards/trezor_t3t1_v4.h
@@ -4,7 +4,7 @@
 #define DISPLAY_RESX 240
 #define DISPLAY_RESY 240
 
-#define VDD_1V8 1
+#define VDD_3V3 1
 #define HSE_16MHZ 1
 
 #define USE_SD_CARD 1