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-rw-r--r--Master/tlpkg/installer/install-menu-perltk.pl2
1 files changed, 1 insertions, 1 deletions
diff --git a/Master/tlpkg/installer/install-menu-perltk.pl b/Master/tlpkg/installer/install-menu-perltk.pl
index a8fd6338bb8..3a3aca2f8b9 100644
--- a/Master/tlpkg/installer/install-menu-perltk.pl
+++ b/Master/tlpkg/installer/install-menu-perltk.pl
@@ -11,7 +11,7 @@ $^W = 1;
my $svnrev = '$Revision$';
$svnrev =~ m/: ([0-9]+) /;
-$::menurevision = $1;
+$::menurevision = ($1 ? $1 : 'unknown');
require Tk;
require Tk::Dialog;