diff --git a/debian/watch b/debian/watch
index 4d52e11de..2ccc66a0a 100644
--- a/debian/watch
+++ b/debian/watch
@@ -1,3 +1,3 @@
 version=3
 https://github.com/libphonenumber/libphonenumber/tags \
-  .*/archive/libphonenumber-(\d[\d\.]+).tar.gz
+  .*/archive/libphonenumber-(\d[\d\.]+)\.tar\.gz