diff --git a/libusb/os/netbsd_usb.c b/libusb/os/netbsd_usb.c
index 16e07f2..157b2f8 100644
--- a/libusb/os/netbsd_usb.c
+++ b/libusb/os/netbsd_usb.c
@@ -130,7 +130,7 @@
 	char devnode[16];
 	int fd, err, i;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	/* Only ugen(4) is supported */
 	for (i = 0; i < USB_MAX_DEVICES; i++) {
@@ -231,7 +231,7 @@
 {
 	struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	memcpy(buf, &dpriv->ddesc, DEVICE_DESC_LENGTH);
 
@@ -302,7 +302,7 @@
 {
 	struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	if (ioctl(dpriv->fd, USB_GET_CONFIG, config) < 0)
 		return _errno_to_libusb(errno);
@@ -376,7 +376,7 @@
 	struct device_priv *dpriv = (struct device_priv *)handle->dev->os_priv;
 	struct usb_ctl_request req;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	req.ucr_request.bmRequestType = UT_WRITE_ENDPOINT;
 	req.ucr_request.bRequest = UR_CLEAR_FEATURE;
@@ -393,7 +393,7 @@
 int
 netbsd_reset_device(struct libusb_device_handle *handle)
 {
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	return (LIBUSB_ERROR_NOT_SUPPORTED);
 }
@@ -403,7 +403,7 @@
 {
 	struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	free(dpriv->cdesc);
 }
@@ -415,7 +415,7 @@
 	struct handle_priv *hpriv;
 	int err = 0;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
 	hpriv = (struct handle_priv *)transfer->dev_handle->os_priv;
@@ -457,7 +457,7 @@
 int
 netbsd_cancel_transfer(struct usbi_transfer *itransfer)
 {
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	return (LIBUSB_ERROR_NOT_SUPPORTED);
 }
@@ -471,8 +471,6 @@
 int
 netbsd_clock_gettime(int clkid, struct timespec *tp)
 {
-	usbi_dbg("clock %d", clkid);
-
 	if (clkid == USBI_CLOCK_REALTIME)
 		return clock_gettime(CLOCK_REALTIME, tp);
 
diff --git a/libusb/os/openbsd_usb.c b/libusb/os/openbsd_usb.c
index ed4d3f2..508d283 100644
--- a/libusb/os/openbsd_usb.c
+++ b/libusb/os/openbsd_usb.c
@@ -138,7 +138,7 @@
 	char *udevname;
 	int fd, addr, i, j;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	for (i = 0; i < 8; i++) {
 		snprintf(busnode, sizeof(busnode), USBDEV "%d", i);
@@ -266,7 +266,7 @@
 {
 	struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	memcpy(buf, &dpriv->ddesc, DEVICE_DESC_LENGTH);
 
@@ -409,7 +409,7 @@
 	if ((fd = _bus_open(handle->dev->bus_number)) < 0)
 		return _errno_to_libusb(errno);
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	req.ucr_addr = handle->dev->device_address;
 	req.ucr_request.bmRequestType = UT_WRITE_ENDPOINT;
@@ -431,7 +431,7 @@
 int
 obsd_reset_device(struct libusb_device_handle *handle)
 {
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	return (LIBUSB_ERROR_NOT_SUPPORTED);
 }
@@ -441,7 +441,7 @@
 {
 	struct device_priv *dpriv = (struct device_priv *)dev->os_priv;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	free(dpriv->cdesc);
 	free(dpriv->devname);
@@ -454,7 +454,7 @@
 	struct handle_priv *hpriv;
 	int err = 0;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
 	hpriv = (struct handle_priv *)transfer->dev_handle->os_priv;
@@ -496,7 +496,7 @@
 int
 obsd_cancel_transfer(struct usbi_transfer *itransfer)
 {
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	return (LIBUSB_ERROR_NOT_SUPPORTED);
 }
diff --git a/libusb/os/sunos_usb.c b/libusb/os/sunos_usb.c
index 20aefe8..9d42b8a 100644
--- a/libusb/os/sunos_usb.c
+++ b/libusb/os/sunos_usb.c
@@ -1003,7 +1003,7 @@
 	sunos_dev_handle_priv_t *hpriv;
 	sunos_dev_priv_t *dpriv;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 	if (!handle) {
 		return;
 	}
@@ -1235,7 +1235,7 @@
 	uint8_t ep;
 	struct sunos_transfer_priv *tpriv;
 
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	tpriv = usbi_transfer_get_os_priv(LIBUSB_TRANSFER_TO_USBI_TRANSFER(transfer));
 	hpriv = (sunos_dev_handle_priv_t *)transfer->dev_handle->os_priv;
@@ -1400,7 +1400,7 @@
 int
 sunos_reset_device(struct libusb_device_handle *handle)
 {
-	usbi_dbg("");
+	usbi_dbg(" ");
 
 	return (LIBUSB_ERROR_NOT_SUPPORTED);
 }
diff --git a/libusb/version_nano.h b/libusb/version_nano.h
index 519fe4a..5ad7260 100644
--- a/libusb/version_nano.h
+++ b/libusb/version_nano.h
@@ -1 +1 @@
-#define LIBUSB_NANO 11442
+#define LIBUSB_NANO 11443