fix skip update site.mk unless values provided when prompted

1 files changed, 1 insertions, 1 deletions

diff --git a/bin/mkdocs-prep.pl b/bin/mkdocs-prep.pl
index e452e0b..7d9b1d3 100755
--- a/bin/mkdocs-prep.pl
+++ b/bin/mkdocs-prep.pl
@@ -66,7 +66,7 @@ while ( $section =~ /^(\w+)\h*:\h*(\w\S*(?:\h+\S+)*)/mg ) {
 
 	unless ( exists $config->{_}->{$1} ) {
 		$_ = prompt "Which string should replace token '$token'?";
-		next unless $_;
+		next unless length $_;
 		$config->{_}->{$1} = $_;
 		$config_has_changed++;
 	}