diff --git a/CITATION.cff b/CITATION.cff
index 539b23223b..854408005d 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -51,7 +51,7 @@ preferred-citation:
   conference:
     name: 2022 European Control Conference (ECC)
     city: London
-    country: GB
+    country: UK
     date-start: 2022-07-12
     date-end: 2022-07-15
   start: 417