diff --git a/modules/operations/rotate.js b/modules/operations/rotate.js
index 699663cad..f1fef1b80 100644
--- a/modules/operations/rotate.js
+++ b/modules/operations/rotate.js
@@ -21,7 +21,7 @@ export function operationRotate(selectedIDs, context) {
 
 
     operation.available = function() {
-        return nodes.size >= 2;
+        return nodes.length >= 2;
     };