diff --git a/firmware/target/arm/as3525/system-as3525.c b/firmware/target/arm/as3525/system-as3525.c
index 58f08a7..3acd22b 100644
--- a/firmware/target/arm/as3525/system-as3525.c
+++ b/firmware/target/arm/as3525/system-as3525.c
@@ -280,7 +280,7 @@ void system_init(void)
     ascodec_write_pmu(0x1A, 2, 0xCC);
     /* CHGVBUS2:  set VBUS threshold to 3.18V and EOC threshold to 30% CC */
     ascodec_write_pmu(0x19, 2, 0x41);
-#if 0   /* don't set higher voltage until impact on runtime has been checked */
+#if 1   /* don't set higher voltage until impact on runtime has been checked */
     /* PVDD1:     set PVDD1 power supply to 2.5 V */
     ascodec_write_pmu(0x18, 1, 0x35);
     /* AVDD17:    set AVDD17 power supply to 2.5V */