diff --git a/collects/web-server/http/response.rkt b/collects/web-server/http/response.rkt
index 5e2601fc8a..44e16faf20 100644
--- a/collects/web-server/http/response.rkt
+++ b/collects/web-server/http/response.rkt
@@ -264,7 +264,7 @@
                          (- (cdr range) (car range)))
                        converted-ranges)))
         (with-handlers ([exn:fail? (lambda (exn) (network-error 'output-file (exn-message exn)))])
-          (call-with-input-file file-path
+          (call-with-input-file* file-path
             (lambda (input)
               (if (= (length converted-ranges) 1)
                   ; Single ranges (in 200 or 206 responses) are sent straight out