diff --git a/firmware/libcommon/source/mode_cardemu.c b/firmware/libcommon/source/mode_cardemu.c
index 2d1a687b..704e6ba2 100644
--- a/firmware/libcommon/source/mode_cardemu.c
+++ b/firmware/libcommon/source/mode_cardemu.c
@@ -309,7 +309,7 @@ static int card_vcc_adc_init(void)
 }
 
 #define VCC_UV_THRESH_1V8	1500000
-#define VCC_UV_THRESH_3V	2800000
+#define VCC_UV_THRESH_3V	2500000
 
 static void process_vcc_adc(struct cardem_inst *ci)
 {