diff --git a/src/calibre/devices/irexdr/driver.py b/src/calibre/devices/irexdr/driver.py
index bd2a91740b..32e98f9353 100644
--- a/src/calibre/devices/irexdr/driver.py
+++ b/src/calibre/devices/irexdr/driver.py
@@ -20,7 +20,7 @@ class IREXDR1000(USBMS):
 
     # Ordered list of supported formats
     # Be sure these have an entry in calibre.devices.mime
-    FORMATS     = ['epub', 'mobi', 'prc', 'html', 'pdf', 'txt']
+    FORMATS     = ['epub', 'mobi', 'prc', 'html', 'pdf', 'djvu', 'txt']
 
     VENDOR_ID   = [0x1e6b]
     PRODUCT_ID  = [0x001]