diff --git a/src/blenderbim/blenderbim/bim/module/tester/ui.py b/src/blenderbim/blenderbim/bim/module/tester/ui.py
index 6f3f069603..3db173884e 100644
--- a/src/blenderbim/blenderbim/bim/module/tester/ui.py
+++ b/src/blenderbim/blenderbim/bim/module/tester/ui.py
@@ -36,7 +36,7 @@ class BIM_PT_tester(Panel):
 
         if tool.Ifc.get():
             row = self.layout.row()
-            row.prop(self.props, "should_load_from_memory")
+            row.prop(props, "should_load_from_memory")
 
         row = self.layout.row()
         row.prop(props, "generate_html_report")