diff --git a/termenv/screen.scm b/termenv/screen.scm
index 6a724a0..25272ff 100644
--- a/termenv/screen.scm
+++ b/termenv/screen.scm
@@ -107,14 +107,14 @@
   (format port (string-append %CSI %ERASE-DISPLAY) 2)
   (move-cursor port 1 1))
 
-
 (define* (scroll-up #:optional (amount 1) (port #t))
+  "Scroll the terminal up"
   (format port (string-append %CSI %SCROLL-UP) amount))
 
 (define* (scroll-down #:optional (amount 1) (port #t))
+  "Scroll the terminal down"
   (format port (string-append %CSI %SCROLL-DOWN) amount))
 
-
 (define* (move-cursor y x #:optional (port #t))
   "Moves the cursor to a given position"
   (format port (string-append %CSI %CURSOR-POSITION) y x))