diff --git a/debian/watch b/debian/watch
index 44ee8ea..0106a53 100644
--- a/debian/watch
+++ b/debian/watch
@@ -1,2 +1,3 @@
 version=4
-opts=pgpmode=auto https://download.savannah.gnu.org/releases/lzip/clzip/clzip-(.+)\.tar\.lz
+opts="pgpmode=auto, uversionmangle=s/(\d)\-?((pre|rc)\d*)$/$1~$2/" \
+https://download.savannah.gnu.org/releases/lzip/clzip/clzip-(.+)\.tar\.lz