diff --git a/src/portable/ohci/ohci.c b/src/portable/ohci/ohci.c
index 364f61cf1..cf6cff364 100644
--- a/src/portable/ohci/ohci.c
+++ b/src/portable/ohci/ohci.c
@@ -212,6 +212,7 @@ bool hcd_init(uint8_t rhport)
        OHCI_CONTROL_LIST_BULK_ENABLE_MASK | OHCI_CONTROL_LIST_PERIODIC_ENABLE_MASK; // TODO Isochronous
 
   OHCI_REG->frame_interval = (OHCI_FMINTERVAL_FSMPS << 16) | OHCI_FMINTERVAL_FI;
+  OHCI_REG->frame_interval ^= (1 << 31); //Must toggle when frame_interval is updated.
   OHCI_REG->periodic_start = (OHCI_FMINTERVAL_FI * 9) / 10; // Periodic start is 90% of frame interval
 
   OHCI_REG->control_bit.hc_functional_state = OHCI_CONTROL_FUNCSTATE_OPERATIONAL; // make HC's state to operational state TODO use this to suspend (save power)