diff --git a/scripts/booksplit b/scripts/booksplit
index b1b06fe..389ba13 100755
--- a/scripts/booksplit
+++ b/scripts/booksplit
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-BOOKEXT="pdf cbz mobi azw3 azw epub"
+BOOKEXT="pdf cbz mobi azw3 azw epub prc"
 
 export PYTHONIOENCODING=utf-8