diff --git a/webapi/src/main/scala/org/knora/webapi/responders/v2/OntologyResponderV2.scala b/webapi/src/main/scala/org/knora/webapi/responders/v2/OntologyResponderV2.scala
index 9df03890b5..4ea34c50ef 100644
--- a/webapi/src/main/scala/org/knora/webapi/responders/v2/OntologyResponderV2.scala
+++ b/webapi/src/main/scala/org/knora/webapi/responders/v2/OntologyResponderV2.scala
@@ -1977,11 +1977,10 @@ final case class OntologyResponderV2(
         // Check for rdfs:subPropertyOf cycles.
 
         allKnoraSuperPropertyIrisWithoutSelf: Set[SmartIri] = knoraSuperProperties.flatMap { superPropertyIri =>
-                                                                cacheData
-                                                                  .getSuperPropertiesOf(superPropertyIri)
-                                                                  .getOrElse(
-                                                                    Set.empty[SmartIri],
-                                                                  )
+                                                                cacheData.subPropertyOfRelations.getOrElse(
+                                                                  superPropertyIri,
+                                                                  Set.empty[SmartIri],
+                                                                )
                                                               }
 
         _ <- ZIO.when(allKnoraSuperPropertyIrisWithoutSelf.contains(internalPropertyIri)) {