diff --git a/_data/chains.json b/_data/chains.json
index 5471cc19..091461cf 100644
--- a/_data/chains.json
+++ b/_data/chains.json
@@ -145,7 +145,7 @@
   },
   {
     "name": "Callisto Mainnet",
-    "short_name": "CLO",
+    "short_name": "clo",
     "chain": "CLO",
     "network": "mainnet",
     "chain_id": 820,