diff --git a/private/util.rkt b/private/util.rkt
index adb77fa..b196d62 100644
--- a/private/util.rkt
+++ b/private/util.rkt
@@ -3,8 +3,8 @@
 (require xml)
 
 (provide debug-mode? printf-debug print-progress print-complete
-         current-cookie-jar update-cookie-jar! cookie-jar->header
-         find-flags find-hrefs)
+         current-cookie-jar update-cookie-jar! cookie-jar->header cookie-jar-ref
+         string->xexpr find-flags find-hrefs)
 
 ;; scheme is bad and it should feel bad
 (define member? member)
@@ -45,6 +45,13 @@
 ;; Parameter for current cookie jar
 (define current-cookie-jar (make-parameter (make-cookie-jar)))
 
+;; CookieJar -> String
+;; Gets a value from a cookie jar
+(define (cookie-jar-ref jar key)
+  (call-with-semaphore
+    (cj-sema jar)
+    (lambda () (hash-ref (cj-jar jar) key))))
+
 ;; CookieJar [List-of (cons Symbol String)] ->
 ;; For a response with the given headers, finds any set-cookie headers and updates the jar
 (define (update-cookie-jar! jar hdrs)
@@ -66,7 +73,7 @@
 ;; CookieJar -> (cons Symbol String)
 ;; Converts this cookie jar into a cookie header for requests
 (define (cookie-jar->header jar)
-  (call-with-semaphore (cj-sema jar) (curry unbox (cj-cache jar))))
+  (call-with-semaphore (cj-sema jar) (lambda () (unbox (cj-cache jar)))))
 
 ;; HTML (XML) handling
 ;; String -> xexpr
diff --git a/smol-http/http-msg.rkt b/smol-http/http-msg.rkt
index 3b5677f..e197a7e 100644
--- a/smol-http/http-msg.rkt
+++ b/smol-http/http-msg.rkt
@@ -236,7 +236,7 @@
 
 ;; input-port? -> [streamof bytes?]
 (define (read-chunked-stream port)
-  (define len (string->number (read-crlf-line port)))
+  (define len (string->number (read-crlf-line port) 16))
   (unless (integer? len)
     (raise-read-http-error "read-chunked-stream: invalid chunked encoding detected"))
   (define data (read-bytes len port))