diff --git a/README.md b/README.md
index e9f8b1cc..a2551938 100644
--- a/README.md
+++ b/README.md
@@ -15,14 +15,14 @@
     <a href="https://github.com/nethermindeth/starknet.go/actions/workflows/test.yml">
         <img src="https://github.com/nethermindeth/starknet.go/actions/workflows/test.yml/badge.svg?branch=main" alt="test">
     </a>
-    <a href="https://github.com/nethermindeth/starknet.go">
+    <a href="https://github.com/NethermindEth/starknet.go/stargazers">
       <img src="https://img.shields.io/github/stars/nethermindeth/starknet.go?style=social"/>
     </a>
 </p>
 
 </p>
 <p align="center">
-  <a href="https://twitter.com/NethermindStark">
+  <a href="https://x.com/NethermindStark">
     <img src="https://img.shields.io/twitter/follow/NethermindStark?style=social"/>
   </a>
   <a href="https://t.me/StarknetGo">
@@ -96,6 +96,15 @@ go run main.go
 
 > Check [here](examples/deployContractUDC/README.md) for more details.
 
+***starknet typedData***
+
+```sh
+cd examples/typedData
+go run main.go
+```
+
+> Check [here](examples/typedData/README.md) for more details.
+
 <br/> Check [here](https://github.com/NethermindEth/starknet.go/tree/main/examples) for some FAQ answered by these examples.
 
 
diff --git a/rpc/call.go b/rpc/call.go
index 4d29cf1d..651edd94 100644
--- a/rpc/call.go
+++ b/rpc/call.go
@@ -16,6 +16,10 @@ import (
 // - []*felt.Felt: the result of the function call
 // - error: an error if any occurred during the execution
 func (provider *Provider) Call(ctx context.Context, request FunctionCall, blockID BlockID) ([]*felt.Felt, error) {
+	if request.Calldata == nil {
+		request.Calldata = []*felt.Felt{}
+	}
+
 	var result []*felt.Felt
 	if err := do(ctx, provider.c, "starknet_call", &result, request, blockID); err != nil {
 		return nil, tryUnwrapToRPCErr(err, ErrContractNotFound, ErrContractError, ErrBlockNotFound)