diff --git a/bb.sh b/bb.sh
index d9b852c..a16679c 100755
--- a/bb.sh
+++ b/bb.sh
@@ -785,7 +785,7 @@ tags_in_post() {
 # Prints one line with space-separated tags to stdout
 posts_with_tags() {
     [ $# -lt 1 ] && return
-    tag_files="$(echo "$@" | sed "s/\S\+/tag_&.html/g")"
+    tag_files="$(echo "$@" | sed "s/\S\+/$prefix_tags_&.html/g")"
     sed -n '/^<h3><a class="ablack" href="[^"]*">/{s/.*href="\([^"]*\)">.*/\1/;p}' $tag_files
 }