diff --git a/collects/frtime/animation/graphics-sig.rkt b/collects/frtime/animation/graphics-sig.rkt
index 71d3ddd21a..d7cc99d319 100644
--- a/collects/frtime/animation/graphics-sig.rkt
+++ b/collects/frtime/animation/graphics-sig.rkt
@@ -1,5 +1,5 @@
-#lang scheme
-(require scheme/unit)
+#lang racket
+(require racket/unit)
 
 (provide graphics^ graphics:posn-less^ graphics:posn^)