diff --git a/src/spdx_tools/spdx3/writer/console/relationship_writer.py b/src/spdx_tools/spdx3/writer/console/relationship_writer.py
index 1a8b16a3e..26b020315 100644
--- a/src/spdx_tools/spdx3/writer/console/relationship_writer.py
+++ b/src/spdx_tools/spdx3/writer/console/relationship_writer.py
@@ -12,5 +12,5 @@ def write_relationship(relationship: Relationship, text_output: TextIO, heading:
     if heading:
         text_output.write("## Relationship\n")
     write_element_properties(relationship, text_output)
-    for property_name in relationship.__annotations__.keys():
+    for property_name in type(relationship).__annotations__.keys():
         write_value(property_name, getattr(relationship, property_name), text_output)