diff --git a/docs/cmdline-opts/gen.pl b/docs/cmdline-opts/gen.pl
index eb9b328492..405099b710 100755
--- a/docs/cmdline-opts/gen.pl
+++ b/docs/cmdline-opts/gen.pl
@@ -46,7 +46,7 @@ my %protolong;
 my %catlong;
 
 use POSIX qw(strftime);
-my $date = strftime "%b %e %Y", localtime;
+my $date = strftime "%B %d %Y", localtime;
 my $version = "unknown";
 
 open(INC, "<../../include/curl/curlver.h");