diff --git a/developers/smart-contracts/error-codes.md b/developers/smart-contracts/error-codes.md
index 6dd4f32..389dd16 100644
--- a/developers/smart-contracts/error-codes.md
+++ b/developers/smart-contracts/error-codes.md
@@ -30,6 +30,7 @@ Pool errors starts with 2000.
 | get-expiry-fail-err | 2013 | get-expiry fail on pool logic |
 | yield-token-equation-call-err | 2014 | yield token equation calling error |
 | get-price-fail-err | 2015 | get-price error |
+| dy-bigger-than-available-err | 2016 | thrown if dy > balance-aytoken |
 
 ## Vault Error