diff --git a/pyinfra/visitor/visitor.py b/pyinfra/visitor/visitor.py
index 9a7d806..54c255f 100644
--- a/pyinfra/visitor/visitor.py
+++ b/pyinfra/visitor/visitor.py
@@ -80,7 +80,8 @@ class QueueVisitor:
 
         return process_storage_item
 
-    def remove_empty_restuls(self, results):
+    @staticmethod
+    def remove_empty_restuls(results):
         return lfilter(compose(any, itervalues), results)
 
     def process_storage_item(self, data_metadata_pack):