diff --git a/data/langdb.yaml b/data/langdb.yaml
index a85bee1..fd6bee5 100644
--- a/data/langdb.yaml
+++ b/data/langdb.yaml
@@ -519,7 +519,7 @@ languages:
  # Also known as Fíntika Rómma
   rmf: [Latn, [EU], kaalengo tšimb]
   rmy: [Latn, [EU], Romani]
-  rn: [Latn, [AF], Kirundi]
+  rn: [Latn, [AF], ikirundi]
   ro: [Latn, [EU], română]
   roa-rup: [rup]
   roa-tara: [Latn, [EU], tarandíne]
diff --git a/data/language-data.json b/data/language-data.json
index 9ec625c..084c13b 100644
--- a/data/language-data.json
+++ b/data/language-data.json
@@ -3381,7 +3381,7 @@
             [
                 "AF"
             ],
-            "Kirundi"
+            "ikirundi"
         ],
         "ro": [
             "Latn",