diff --git a/CHANGELOG.md b/CHANGELOG.md
index 02d35a1..c944164 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 [0.9.0.1]
 
 - Better tmp dir
+- Fix bug that would cause sort to mess up if "-" in dirname
 
 [0.9.0.0]
 
diff --git a/leaf.php b/leaf.php
index bfc3aa2..d84e384 100644
--- a/leaf.php
+++ b/leaf.php
@@ -1185,7 +1185,7 @@ if (args("prerotated")) {
 	}
 
 foreach ($files as $file) {
-	$num = filter_var($file, FILTER_SANITIZE_NUMBER_INT);
+	$num = abs(filter_var($file, FILTER_SANITIZE_NUMBER_INT));
 	if ($num < $midpoint_key) {
 		$new = args("dir").sprintf('%03d',$e)."-".basename($file);
 		$ops[$e] = array($file,$new,$leftrotation);