diff --git a/quit/tools/update.py b/quit/tools/update.py
index 61cd5b23..d01a039a 100644
--- a/quit/tools/update.py
+++ b/quit/tools/update.py
@@ -262,7 +262,7 @@ def evalUpdate(graph, update, initBindings=None, actionLog=False):
 
     res = []
 
-    for u in update:
+    for u in update.algebra:
 
         ctx = QueryContext(graph)
         ctx.prologue = u.prologue