diff --git a/config/migrations/2023/20230704112900-onboarding-igs/20230912112200-fix-igs-iw-classification.sparql b/config/migrations/2023/20230704112900-onboarding-igs/20230912112200-fix-igs-iw-classification.sparql
new file mode 100644
index 0000000..d62f42b
--- /dev/null
+++ b/config/migrations/2023/20230704112900-onboarding-igs/20230912112200-fix-igs-iw-classification.sparql
@@ -0,0 +1,6 @@
+DELETE DATA {
+  GRAPH <http://mu.semte.ch/graphs/administrative-unit> {
+    <http://data.lblod.info/id/bestuurseenheden/ade6a3d0e031660258649f141b8f17015da01557581f74122147c738af83b0c4>
+      <http://www.w3.org/ns/org#classification> <http://data.vlaanderen.be/id/concept/BestuurseenheidClassificatieCode/d01bb1f6-2439-4e33-9c25-1fc295de2e71> .
+  }
+}