diff --git a/send-grid.release-info b/send-grid.release-info
index dcfcf72..a99f650 100644
--- a/send-grid.release-info
+++ b/send-grid.release-info
@@ -2,4 +2,5 @@
 
 (uri targz "https://github.com/ThomasHintz/chicken-scheme-{egg-name}/tarball/{egg-release}")
 (release "1")
-(release "2")
\ No newline at end of file
+(release "2")
+(release "2.0.1")
\ No newline at end of file
diff --git a/send-grid.scm b/send-grid.scm
index 103193c..63b82af 100644
--- a/send-grid.scm
+++ b/send-grid.scm
@@ -35,7 +35,7 @@
    send-mail)
 
 (import scheme chicken)
-(use http-client uri-common intarweb json srfi-1 srfi-18)
+(use data-structures http-client uri-common intarweb json srfi-1 srfi-18)
 
 (define api-user (make-parameter ""))
 (define api-key (make-parameter ""))
@@ -44,7 +44,7 @@
   (vector->list (with-input-from-request
                  (make-request method: method uri: (uri-reference url)) parameters json-read)))
 
-(define (send-mail #!key (subject #f) (text #f) (html #f) (from #f) (from-name #f) (to #f) (reply-to #f) (api-user (api-user)) (api-key (api-key)))
+(define (send-mail #!key (subject #f) (text #f) (html #f) (from #f) (from-name #f) (to #f) (reply-to #f) (api-user (api-user)) (api-key (api-key)) files)
   (if (and subject (or text html) from from-name to reply-to)
       (rest-action "https://sendgrid.com/api/mail.send.json" 'POST
                    `((api_user . ,api-user)
@@ -54,6 +54,16 @@
                      (replyto . ,reply-to)
                      ,(if html `(html . ,html) `(text . ,text))
                      (from . ,from)
-                     (fromname . ,from-name)))
+                     (fromname . ,from-name)
+                     ,@(map
+                        (lambda (file-details)
+                          `(,(string->symbol
+                              (string-append
+                               "files[" (alist-ref 'filename file-details) "]"))
+                            file: ,(alist-ref 'filepath file-details)
+                            filename: ,(alist-ref 'filename file-details)
+                            headers: ((content-type
+                                       ,(alist-ref 'content-type file-details)))))
+                        files)))
       (abort "All parameters are required for successfully sending mail.")))
-)
\ No newline at end of file
+)
diff --git a/send-grid.setup b/send-grid.setup
index 503812f..6825aa2 100644
--- a/send-grid.setup
+++ b/send-grid.setup
@@ -11,5 +11,5 @@
   ; Files to install for your extension:
   '("send-grid.o" "send-grid.so" "send-grid.import.so")
   ; Assoc list with properties for your extension:
-  '((version 2)
+  '((version 2.0.1)
     (static "send-grid.o"))) ;; for static linking
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