diff --git a/src/include/86box/usb.h b/src/include/86box/usb.h
index af1922570..ab9ae53a7 100644
--- a/src/include/86box/usb.h
+++ b/src/include/86box/usb.h
@@ -76,6 +76,15 @@ typedef struct
 } usb_desc_conf_t;
 #pragma pack(pop)
 
+typedef struct
+{
+    uint32_t HccaInterrruptTable[32];
+    uint16_t HccaFrameNumber;
+    uint16_t HccaPad1;
+    uint32_t HccaDoneHead;
+    uint32_t Reserved[29];
+} usb_hcca_t;
+
 /* USB endpoint device struct. Incomplete and unused. */
 typedef struct
 {
diff --git a/src/usb.c b/src/usb.c
index cde3ee4a9..f0c7113b7 100644
--- a/src/usb.c
+++ b/src/usb.c
@@ -28,6 +28,7 @@
 #include <86box/mem.h>
 #include <86box/timer.h>
 #include <86box/usb.h>
+#include <86box/dma.h>
 
 #ifdef ENABLE_USB_LOG
 int usb_do_log = ENABLE_USB_LOG;
@@ -243,6 +244,7 @@ void
 ohci_end_of_frame(usb_t* dev)
 {
     /* TODO: Put endpoint and transfer descriptor processing here. */
+    dev->ohci_mmio_w[OHCI_HcFmNumber / 2]++;
 }
 
 void
@@ -262,8 +264,9 @@ ohci_update_frame_counter(void* priv)
         dev->ohci_mmio_w[OHCI_HcFmRemaining / 2] = dev->ohci_mmio_w[OHCI_HcFmInterval / 2] & 0x3fff;
         dev->ohci_mmio_l[OHCI_HcFmRemaining / 4] &= ~(1 << 31);
         dev->ohci_mmio_l[OHCI_HcFmRemaining / 4] |= dev->ohci_mmio_l[OHCI_HcFmInterval / 4] & (1 << 31);
-        dev->ohci_mmio_w[OHCI_HcFmNumber / 2]++;
         ohci_start_of_frame(dev);
+        timer_on_auto(&dev->ohci_frame_timer, 1. / (12. * 1000. * 1000.));
+        return;
     }
     if (dev->ohci_mmio_w[OHCI_HcFmRemaining / 2]) dev->ohci_mmio_w[OHCI_HcFmRemaining / 2]--;
     timer_on_auto(&dev->ohci_frame_timer, 1. / (12. * 1000. * 1000.));