Update docs/get-details/dapps/smart-contracts/abi/index.md
@@ -44,7 +44,7 @@ A *method signature* is defined as a name, argument types, and return type. The
For example:
-A *method signature* for an `add` method that takes 2 uint64s and returns 1 uint64
+A *method signature* for an `add` method that takes 2 uint64s and returns 1 uint128
```
Method signature: add(uint64,uint64)uint128
```
