diff --git a/CITATION.cff b/CITATION.cff
index c346b7e3..a6a10977 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -2,7 +2,7 @@ cff-version: 1.2.0
 preferred-citation:
   title: "Nopol: Automatic Repair of Conditional Statement Bugs in Java Programs"
   doi: "10.1109/TSE.2016.2560811"
-  year: "2017"
+  issue-date: "2017"
   type: article
   journal: "IEEE Transactions on Software Engineering"
   authors: