diff --git a/releases/ubuntu.json b/releases/ubuntu.json
index 9637e943..83a258f2 100644
--- a/releases/ubuntu.json
+++ b/releases/ubuntu.json
@@ -352,6 +352,10 @@
     "5.10": {
       "name": "5.10",
       "date": "2005-10-13"
+    },
+    "5.04": {
+      "name": "5.04",
+      "date": "2005-04-08"
     }
   }
 }
\ No newline at end of file