diff --git a/archiver/zlib/zlib.desc b/archiver/zlib/zlib.desc
index 9f97d3735..5e9da8733 100644
--- a/archiver/zlib/zlib.desc
+++ b/archiver/zlib/zlib.desc
@@ -38,7 +38,7 @@
 [L] OpenSource
 [S] Stable
 [V] 1.2.3
-[P] X -1-3-----9 105.900
+[P] X -?-3-----9 105.900
 
 [D] 623948124 zlib-1.2.3.tar.bz2 http://www.zlib.net/