diff --git a/sysutils/usbtop/files/patch-src_usb__bus.cpp b/sysutils/usbtop/files/patch-src_usb__bus.cpp
new file mode 100644
index 000000000000..58cb2eb3ede6
--- /dev/null
+++ b/sysutils/usbtop/files/patch-src_usb__bus.cpp
@@ -0,0 +1,47 @@
+--- src/usb_bus.cpp.orig	2021-08-09 11:19:20 UTC
++++ src/usb_bus.cpp
+@@ -28,6 +28,12 @@
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  */
+ 
++#ifdef __FreeBSD__
++#include <stdint.h>
++#include <sys/endian.h>
++#include <dev/usb/usb_pf.h>
++#endif
++
+ #include <usbtop/usb_bus.h>
+ #include <usbtop/tools.h>
+ 
+@@ -41,8 +47,26 @@ usbtop::UsbBus::~UsbBus()
+ 	}
+ }
+ 
++#ifdef __FreeBSD__
+ void usbtop::UsbBus::push(const pcap_pkthdr* h, const u_char* bytes)
+ {
++	const size_t psize = h->len;
++	const double time = (double)h->ts.tv_sec + ((double)h->ts.tv_usec) / 1000000.0;
++	const struct usbpf_pkthdr *up = (const struct usbpf_pkthdr *)bytes;
++	size_t payload;
++	UsbStats::direction_type direction;
++
++	if (psize < sizeof(*up))
++		return;
++
++	payload = le32toh(up->up_totlen) - sizeof(*up) - le32toh(up->up_frames) * USBPF_FRAME_HDR_LEN;
++	direction = (up->up_type == USBPF_XFERTAP_DONE) ? UsbStats::from_device : UsbStats::to_device;
++	_stats.push(time, payload, direction);
++	get_device(up->up_address).push(time, payload, direction);
++}	
++#else
++void usbtop::UsbBus::push(const pcap_pkthdr* h, const u_char* bytes)
++{
+ 	// Get the packet size and timestamp
+ 	const size_t psize = h->len;
+ 	const double time = (double)h->ts.tv_sec + ((double)h->ts.tv_usec)/(1000000.0);
+@@ -72,3 +96,4 @@ void usbtop::UsbBus::push(const pcap_pkthdr* h, const 
+ 	_stats.push(time, psize, direction);
+ 	get_device(device_id).push(time, psize, direction);
+ }
++#endif