diff --git a/README.md b/README.md
index 3aa8f977..f119428c 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 <img align="right" width="425px" src="https://github.com/xssnick/props/blob/master/logoimg.png?raw=true">
 
 [![Based on TON][ton-svg]][ton]
-![Coverage](https://img.shields.io/badge/Coverage-72.2%25-brightgreen)
+![Coverage](https://img.shields.io/badge/Coverage-72.4%25-brightgreen)
 
 Golang library for interacting with TON blockchain.
 
diff --git a/tlb/state-init.go b/tlb/state-init.go
index 20e7056e..292e696e 100644
--- a/tlb/state-init.go
+++ b/tlb/state-init.go
@@ -13,7 +13,7 @@ type TickTock struct {
 
 type StateInit struct {
 	Depth    uint64           `tlb:"maybe ## 5"`
-	TickTock *TickTock        `tlb:"maybe ^"`
+	TickTock *TickTock        `tlb:"maybe ."`
 	Code     *cell.Cell       `tlb:"maybe ^"`
 	Data     *cell.Cell       `tlb:"maybe ^"`
 	Lib      *cell.Dictionary `tlb:"dict 256"`
diff --git a/tlb/transaction.go b/tlb/transaction.go
index 2884ec99..31807edc 100644
--- a/tlb/transaction.go
+++ b/tlb/transaction.go
@@ -53,18 +53,20 @@ func (t *Transaction) String() string {
 		}
 	}
 
-	if t.IO.In.MsgType == MsgTypeInternal {
-		in = t.IO.In.AsInternal().Amount.NanoTON()
-	}
-
 	var build string
 
-	if in.Cmp(big.NewInt(0)) != 0 {
-		intTx := t.IO.In.AsInternal()
-		build += fmt.Sprintf("LT: %d, In: %s TON, From %s", t.LT, FromNanoTON(in).TON(), intTx.SrcAddr)
-		comment := intTx.Comment()
-		if comment != "" {
-			build += ", Comment: " + comment
+	if t.IO.In != nil {
+		if t.IO.In.MsgType == MsgTypeInternal {
+			in = t.IO.In.AsInternal().Amount.NanoTON()
+		}
+
+		if in.Cmp(big.NewInt(0)) != 0 {
+			intTx := t.IO.In.AsInternal()
+			build += fmt.Sprintf("LT: %d, In: %s TON, From %s", t.LT, FromNanoTON(in).TON(), intTx.SrcAddr)
+			comment := intTx.Comment()
+			if comment != "" {
+				build += ", Comment: " + comment
+			}
 		}
 	}