diff --git a/CITATION.cff b/CITATION.cff
index b9c2180fb7a5bdb60bf7f0a3f57cbf3ee201de74..e793e92b063b799b55a6c0394136b96e9cca9bc0 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -30,3 +30,4 @@ version: 2022.1.2
 doi: 10.5281/zenodo.6345184
 date-released: 2022-03-10
 url: "https://github.com/inducer/islpy"
+license: MIT