diff --git a/pkgs/htdp-pkgs/htdp-lib/2htdp/private/image-more.rkt b/pkgs/htdp-pkgs/htdp-lib/2htdp/private/image-more.rkt
index 1d8e045720..7937f5f1c4 100644
--- a/pkgs/htdp-pkgs/htdp-lib/2htdp/private/image-more.rkt
+++ b/pkgs/htdp-pkgs/htdp-lib/2htdp/private/image-more.rkt
@@ -705,7 +705,6 @@
             (max ay by cy dy))))
 
 (define (rotate-points in-points θ)
-  (printf "θ ~s\n" θ)
   (let* ([cs (map point->c in-points)]
          [vectors (points->vectors cs)]
          [rotated-vectors (map (λ (c) (rotate-c c θ)) vectors)]