diff --git a/kstars/kstars/indi/fli/libfli-usb-sys-bsd.c b/kstars/kstars/indi/fli/libfli-usb-sys-bsd.c
index caccf859..cf9ff447 100644
--- a/kstars/kstars/indi/fli/libfli-usb-sys-bsd.c
+++ b/kstars/kstars/indi/fli/libfli-usb-sys-bsd.c
@@ -93,7 +93,7 @@ long unix_usbverifydescriptor(flidev_t dev, fli_unixio_t *io)
       break;
     }
         
-    DEVICE->devinfo.fwrev = usb_desc.bcdDevice;
+    DEVICE->devinfo.fwrev = (long)usb_desc.bcdDevice;
   }
     
   return 0;