diff --git a/bin/cuirass.in b/bin/cuirass.in
index d7d67f5..c56f5b5 100644
--- a/bin/cuirass.in
+++ b/bin/cuirass.in
@@ -45,7 +45,7 @@ exec ${GUILE:-@GUILE@} --no-auto-compile -e main -s "$0" "$@"
 (define %options
   '((one-shot                   (value #f))
     (cache-directory            (value #t))
-    (database (single-char #\f) (value #t))
+    (database (single-char #\D) (value #t))
     (interval (single-char #\I) (value #t))
     (version  (single-char #\V) (value #f))
     (help     (single-char #\h) (value #f))))