diff --git a/scripts/inject-chapter-navigation-footer b/scripts/inject-chapter-navigation-footer
index 3981eda5..3de87fd0 100755
--- a/scripts/inject-chapter-navigation-footer
+++ b/scripts/inject-chapter-navigation-footer
@@ -33,8 +33,8 @@ if($toc){
$fileName = $epubDirectory . '/' . $chapterLinks[$i]->Path . '.xhtml';
$chapter = file_get_contents($fileName);
// Inject the navigation footer.
- $previousLink = $previousObj ? sprintf('Previous: %s', $bookUrl . '/' . $previousObj->Path, htmlspecialchars($previousObj->Name)) : '';
- $nextLink = $nextObj ? sprintf('Next: %s', $bookUrl . '/' . $nextObj->Path, htmlspecialchars($nextObj->Name)) : '';
+ $previousLink = $previousObj ? sprintf('Previous: %s', $bookUrl . '/' . $previousObj->Path, htmlspecialchars($previousObj->Name)) : '';
+ $nextLink = $nextObj ? sprintf('Next: %s', $bookUrl . '/' . $nextObj->Path, htmlspecialchars($nextObj->Name)) : '';
$footer = sprintf('', $previousLink, $nextLink);
$chapter = str_replace('