diff --git a/docs/ralph/built-in-functions.md b/docs/ralph/built-in-functions.md
index 0a39f1a5..c403ae34 100644
--- a/docs/ralph/built-in-functions.md
+++ b/docs/ralph/built-in-functions.md
@@ -166,6 +166,20 @@ Returns the id of the contract
 
 ---
 
+### contractAddress
+
+```Rust
+fn contractAddress!(contract:<Contract>) -> (Address)
+```
+
+Returns the address of the contract
+
+> @param **contract** *the contract variable*
+>
+> @returns *the address of the contract*
+
+---
+
 ### callerContractId
 
 ```Rust
@@ -1268,11 +1282,11 @@ Encodes inputs as big-endian ByteVec.
 fn blake2b!(data:ByteVec) -> (ByteVec)
 ```
 
-Computes the Blake2b hash of the input.
+Computes the Blake2b-256 hash of the input.
 
 > @param **data** *the input data to be hashed*
 >
-> @returns *the hash result*
+> @returns *the 32 bytes hash result*
 
 ---