diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go
index 4c5b9293a1..ac5edcdfa1 100644
--- a/internal/ethapi/api.go
+++ b/internal/ethapi/api.go
@@ -2105,6 +2105,10 @@ func (s *TransactionAPI) GetTransactionReceipt(ctx context.Context, hash common.
 		"effectiveGasPrice": (*hexutil.Big)(receipt.EffectiveGasPrice),
 	}
 
+	if receipt.EffectiveGasPrice == nil {
+		fields["effectiveGasPrice"] = new(hexutil.Big)
+	}
+
 	// Assign receipt status or post state.
 	if len(receipt.PostState) > 0 {
 		fields["root"] = hexutil.Bytes(receipt.PostState)