diff --git a/base/bison/bison.desc b/base/bison/bison.desc
index 740a51ab9..c53a2701c 100644
--- a/base/bison/bison.desc
+++ b/base/bison/bison.desc
@@ -40,7 +40,7 @@
 [L] GPL
 [S] Stable
 [V] 2.6.2
-[P] X -1-3-----9 109.400
+[P] X 01-3-----9 109.400
 
 [D] 2052392372 bison-2.6.2.tar.gz ftp://ftp.gnu.org/pub/gnu/bison/