diff --git a/libusb/os/windows_winusb.c b/libusb/os/windows_winusb.c
index df17d81..a03d6a5 100644
--- a/libusb/os/windows_winusb.c
+++ b/libusb/os/windows_winusb.c
@@ -2766,7 +2766,7 @@
 	struct winusb_transfer_priv *transfer_priv = get_winusb_transfer_priv(itransfer);
 	struct winusb_device_handle_priv *handle_priv = get_winusb_device_handle_priv(transfer->dev_handle);
 	PWINUSB_SETUP_PACKET setup = (PWINUSB_SETUP_PACKET)transfer->buffer;
-	ULONG size;
+	ULONG size, transferred;
 	HANDLE winusb_handle;
 	OVERLAPPED *overlapped;
 	int current_interface;
@@ -2806,11 +2806,13 @@
 		}
 		windows_force_sync_completion(itransfer, 0);
 	} else {
-		if (!WinUSBX[sub_api].ControlTransfer(winusb_handle, *setup, transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE, size, NULL, overlapped)) {
+		if (!WinUSBX[sub_api].ControlTransfer(winusb_handle, *setup, transfer->buffer + LIBUSB_CONTROL_SETUP_SIZE, size, &transferred, overlapped)) {
 			if (GetLastError() != ERROR_IO_PENDING) {
 				usbi_warn(TRANSFER_CTX(transfer), "ControlTransfer failed: %s", windows_error_str(0));
 				return LIBUSB_ERROR_IO;
 			}
+		} else {
+			windows_force_sync_completion(itransfer, transferred);
 		}
 	}
 
diff --git a/libusb/version_nano.h b/libusb/version_nano.h
index 838c0a6..09d6e2e 100644
--- a/libusb/version_nano.h
+++ b/libusb/version_nano.h
@@ -1 +1 @@
-#define LIBUSB_NANO 11673
+#define LIBUSB_NANO 11674