diff --git a/tool/make-snapshot b/tool/make-snapshot
index ad5fd879f3..9199cc2097 100755
--- a/tool/make-snapshot
+++ b/tool/make-snapshot
@@ -202,7 +202,7 @@ end
 def package(vcs, rev, destdir, tmp = nil)
   patchlevel = false
   prerelease = false
-  if rev and revision = rev[/@(\d+)\z/, 1]
+  if rev and revision = rev[/@(\h+)\z/, 1]
     rev = $`
   end
   case rev