diff --git a/data/langdb.yaml b/data/langdb.yaml
index ed8fd5d..b81fe42 100644
--- a/data/langdb.yaml
+++ b/data/langdb.yaml
@@ -340,6 +340,7 @@ languages:
   iu: [ike-cans]
   izh: [Latn, [EU], ižoran keel]
   ja: [Jpan, [AS], 日本語]
+  jac: [Latn, [AM], Abꞌxubꞌal Poptiꞌ]
   jam: [Latn, [AM], Patois]
   jbo: [Latn, [WW], lojban]
   jdt: [jdt-cyrl]
diff --git a/data/language-data.json b/data/language-data.json
index 3555fdd..cdbb69b 100644
--- a/data/language-data.json
+++ b/data/language-data.json
@@ -2110,6 +2110,13 @@
             ],
             "日本語"
         ],
+        "jac": [
+            "Latn",
+            [
+                "AM"
+            ],
+            "Abꞌxubꞌal Poptiꞌ"
+        ],
         "jam": [
             "Latn",
             [