diff --git a/contrib/kiss-outdated b/contrib/kiss-outdated
index aefd270..4ae1a4f 100755
--- a/contrib/kiss-outdated
+++ b/contrib/kiss-outdated
@@ -113,6 +113,9 @@ repology_name() {
 
         kiss)
             remote=kiss-package-manager
+
+            # Temporary.
+            remote=kiss-unclassified
         ;;
 
         liberation-fonts)
@@ -129,6 +132,10 @@ repology_name() {
             remote=links
         ;;
 
+        linux-headers)
+            remote=linux
+        ;;
+
         lux)
             remote=lux-brightness-ventto
         ;;
@@ -256,7 +263,7 @@ main() {
                 # Package up-to-date, do nothing.
             ;;
 
-            - | '' | ' ')
+            '' | ' ')
                 printf '\n%s: empty response\n' "$pkg" >&2
                 printf 'possible causes:\n' >&2
                 printf '    package name differs from repology name,\n' >&2
@@ -264,6 +271,10 @@ main() {
                 printf '    network error\n\n' >&2
             ;;
 
+            '-')
+                # No version scheme, do nothing.
+            ;;
+
             *)
                 printf '%-30s %s -> %s\n' "$pkg" "$ver" "$remote_ver"
             ;;