diff --git a/plugins/import.lisp b/plugins/import.lisp
index 087657e..eeea58f 100644
--- a/plugins/import.lisp
+++ b/plugins/import.lisp
@@ -1,4 +1,5 @@
-(ql:quickload '(cxml split-sequence local-time cl-ppcre))
+(eval-when (:compile-toplevel)
+  (ql:quickload '(cxml split-sequence local-time cl-ppcre)))
 
 (defpackage :coleslaw-import
   (:use :cl :coleslaw :cxml)
@@ -52,9 +53,9 @@ object is determined by SERVICE."))
         (add-post new-post (post-id new-post))
         (when static-p
           (ensure-directories-exist coleslaw::*input-dir*)
-          (write-post-file new-post))))))
+          (export-post new-post))))))
 
-(defun write-post-file (post)
+(defmethod export-post (post)
   (let ((filepath (merge-pathnames (format nil "~5,'0d-~a.post"
                                            (post-id post)
                                            (coleslaw::escape (post-title post)))
diff --git a/plugins/mathjax.lisp b/plugins/mathjax.lisp
index fb7f3d6..0981893 100644
--- a/plugins/mathjax.lisp
+++ b/plugins/mathjax.lisp
@@ -1,2 +1,17 @@
-(in-package :coleslaw)
+(defpackage :coleslaw-mathjax
+  (:use :cl :coleslaw))
 
+(in-package :coleslaw-mathjax)
+
+(defvar *mathjax-header* "<script type=\"text/x-mathjax-config\">
+  MathJax.Hub.Config({tex2jax: {inlineMath: [['\\(','\\)']]}});
+</script>
+<script type=\"text/javascript\"
+src=\"http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML\">
+</script>")
+
+(defmethod enable ()
+  (coleslaw::add-injection *mathjax-header* :head))
+
+(defmethod disable ()
+  (coleslaw::remove-injection *mathjax-header* :head))
diff --git a/src/plugins.lisp b/src/plugins.lisp
index 7a087c9..543a637 100644
--- a/src/plugins.lisp
+++ b/src/plugins.lisp
@@ -2,7 +2,7 @@
 
 (defun load-plugins (plugins)
   "Resolve the path of each symbol in PLUGINS and call LOAD on the
-resulting pathname. It is expected that the matching *.lisp files
+resulting pathnames. It is expected that the matching *.lisp files
 are in the plugins folder in coleslaw's source directory."
   (let ((files (mapcar (lambda (sym)
                          (merge-pathnames
diff --git a/static/posts.lisp b/static/posts.lisp
index 517dd5e..c97e95c 100644
--- a/static/posts.lisp
+++ b/static/posts.lisp
@@ -32,7 +32,7 @@
     (loop for tag in (post-tags post) do
          (remove-from-index (concatenate 'string "tag/" tag) post))
     (remove-from-index (concatenate 'string "date/"
-                                    (month-year (post-date post))) post)
+                                    (year-month (post-date post))) post)
     (remove-from-index "recent" post)
     (setf (find-post id) nil)))