diff --git a/stdlib/europa/dagger/engine/fs.cue b/stdlib/europa/dagger/engine/fs.cue
index bba15ec3..38589afd 100644
--- a/stdlib/europa/dagger/engine/fs.cue
+++ b/stdlib/europa/dagger/engine/fs.cue
@@ -49,7 +49,7 @@ package engine
 }
 
 // Produce an empty directory
-#Scratch: {$dagger: fs: _id: null}
+#Scratch: #FS & {$dagger: fs: _id: null}
 
 // Copy files from one FS tree to another
 #Copy: {