diff --git a/webmin/webmin-lib.pl b/webmin/webmin-lib.pl
index 42987a7c9..5494e6058 100755
--- a/webmin/webmin-lib.pl
+++ b/webmin/webmin-lib.pl
@@ -764,6 +764,8 @@ Rounds a version number down to the nearest .01
 =cut
 sub base_version
 {
+#remove waning about (possible) postfixes from update-from-repo.sh
+$_[0] =~ s/[-a-z:_].*//gi;
 return sprintf("%.2f0", $_[0]);
 }