diff --git a/extra/game-input/backend/backend.factor b/extra/game-input/backend/backend.factor
index a31b9d6649..cfba0a52f5 100644
--- a/extra/game-input/backend/backend.factor
+++ b/extra/game-input/backend/backend.factor
@@ -1,4 +1,4 @@
-USING: multiline system parser combinators ;
+USING: eval multiline system combinators ;
 IN: game-input.backend
 
 STRING: set-backend-for-macosx