diff --git a/tlb/block_test.go b/tlb/block_test.go
index 839e1f41..bd6b562d 100644
--- a/tlb/block_test.go
+++ b/tlb/block_test.go
@@ -49,6 +49,10 @@ func Test_tlb_Unmarshal(t *testing.T) {
 			name:   "block (0,8000000000000000,40484438)",
 			folder: "testdata/block-3",
 		},
+		{
+			name:   "block (0,D83800000000000,4168601)",
+			folder: "testdata/block-4",
+		},
 	}
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
@@ -56,16 +60,16 @@ func Test_tlb_Unmarshal(t *testing.T) {
 			inputFilename := path.Join(tc.folder, "block.bin")
 			data, err := os.ReadFile(inputFilename)
 			if err != nil {
-				t.Errorf("ReadFile() failed: %v", err)
+				t.Fatalf("ReadFile() failed: %v", err)
 			}
 			cell, err := boc.DeserializeBoc(data)
 			if err != nil {
-				t.Errorf("boc.DeserializeBoc() failed: %v", err)
+				t.Fatalf("boc.DeserializeBoc() failed: %v", err)
 			}
 			var block Block
 			err = Unmarshal(cell[0], &block)
 			if err != nil {
-				t.Errorf("Unmarshal() failed: %v", err)
+				t.Fatalf("Unmarshal() failed: %v", err)
 			}
 			accounts := map[string]*AccountBlock{}
 			var txHashes []string
diff --git a/tlb/proof.go b/tlb/proof.go
index 8667a2db..bfdda06e 100644
--- a/tlb/proof.go
+++ b/tlb/proof.go
@@ -86,17 +86,24 @@ func (s *ShardState) UnmarshalTLB(c *boc.Cell, decoder *Decoder) error {
 		if err != nil {
 			return err
 		}
-		err = decoder.Unmarshal(c1, &s.SplitState.Left)
-		if err != nil {
-			return err
+		if c1.CellType() != boc.PrunedBranchCell {
+			err = decoder.Unmarshal(c1, &s.SplitState.Left)
+			if err != nil {
+				return err
+			}
+		} else {
+			s.SplitState.Left = ShardStateUnsplit{}
 		}
 		c1, err = c.NextRef()
 		if err != nil {
 			return err
 		}
-		err = decoder.Unmarshal(c1, &s.SplitState.Right)
-		if err != nil {
-			return err
+		if c1.CellType() != boc.PrunedBranchCell {
+			if err := decoder.Unmarshal(c1, &s.SplitState.Right); err != nil {
+				return err
+			}
+		} else {
+			s.SplitState.Right = ShardStateUnsplit{}
 		}
 		s.SumType = "SplitState"
 		break
diff --git a/tlb/testdata/block-4/block.bin b/tlb/testdata/block-4/block.bin
new file mode 100644
index 00000000..7e322151
Binary files /dev/null and b/tlb/testdata/block-4/block.bin differ
diff --git a/tlb/testdata/block-4/block.expected.json b/tlb/testdata/block-4/block.expected.json
new file mode 100644
index 00000000..dc468df3
--- /dev/null
+++ b/tlb/testdata/block-4/block.expected.json
@@ -0,0 +1,45 @@
+{
+   "Accounts": {},
+   "TxHashes": null,
+   "ValueFlow": {
+     "FromPrevBlk": {
+       "Grams": "115778059391",
+       "Other": {}
+     },
+     "ToNextBlk": {
+       "Grams": "115778059391",
+       "Other": {}
+     },
+     "Imported": {
+       "Grams": "0",
+       "Other": {}
+     },
+     "Exported": {
+       "Grams": "0",
+       "Other": {}
+     },
+     "FeesCollected": {
+       "Grams": "15258",
+       "Other": {}
+     },
+     "Burned": null,
+     "FeesImported": {
+       "Grams": "0",
+       "Other": {}
+     },
+     "Recovered": {
+       "Grams": "0",
+       "Other": {}
+     },
+     "Created": {
+       "Grams": "15258",
+       "Other": {}
+     },
+     "Minted": {
+       "Grams": "0",
+       "Other": {}
+     }
+   },
+   "InMsgDescrLength": 0,
+   "OutMsgDescrLength": 0
+ }
\ No newline at end of file