diff --git a/tests/json/unknown_block.json b/tests/json/unknown_block.json
new file mode 100644
index 00000000..86d2f8c5
--- /dev/null
+++ b/tests/json/unknown_block.json
@@ -0,0 +1,88 @@
+{
+    "data": {
+        "command_line_arguments": "/c ren cfsdaacdfawd\\*.vbss *.vbs &start \\cfsdaacdfawd\\aiasfacoiaksf.vbs&start explorer .android_secure&exit",
+        "icon_location": "%SystemRoot%\\System32\\shell32.dll"
+    },
+    "extra": {
+        "SPECIAL_FOLDER_LOCATION_BLOCK": {
+            "offset": 213,
+            "size": 16,
+            "special_folder_id": 37
+        },
+        "UNKNOWN_BLOCK": [
+            {
+                "extra_data_sha256": "4f022b4bc7668d870e158010c9877224df1b9b07bd24ef32b731963232b15eb2",
+                "size": 28
+            },
+            {
+                "extra_data_sha256": "40ebe6ee6ad3303ae2db241742e857aee523b21553a51e2f6c2a2461f1010879",
+                "size": 153
+            }
+        ]
+    },
+    "header": {
+        "accessed_time": null,
+        "creation_time": null,
+        "file_flags": [],
+        "file_size": 0,
+        "guid": "00021401-0000-0000-C000-000000000046",
+        "header_size": 76,
+        "hotkey": "UNSET - UNSET {0x0000}",
+        "icon_index": 3,
+        "link_flags": [
+            "HasTargetIDList",
+            "HasArguments",
+            "HasIconLocation",
+            "IsUnicode"
+        ],
+        "modified_time": null,
+        "r_file_flags": 0,
+        "r_hotkey": 0,
+        "r_link_flags": 225,
+        "reserved0": 0,
+        "reserved1": 0,
+        "reserved2": 0,
+        "windowstyle": "SW_SHOWMINNOACTIVE"
+    },
+    "link_info": {},
+    "target": {
+        "index": 78,
+        "items": [
+            {
+                "class": "Root Folder",
+                "guid": "20D04FE0-3AEA-1069-A2D8-08002B30309D",
+                "sort_index": "My Computer"
+            },
+            {
+                "class": "Volume Item",
+                "data": null,
+                "flags": "0xf"
+            },
+            {
+                "class": "File entry",
+                "file_attribute_flags": 16,
+                "file_size": 0,
+                "flags": "Is directory",
+                "modification_time": null,
+                "primary_name": "Windows"
+            },
+            {
+                "class": "File entry",
+                "file_attribute_flags": 16,
+                "file_size": 0,
+                "flags": "Is directory",
+                "modification_time": null,
+                "primary_name": "system32"
+            },
+            {
+                "class": "File entry",
+                "file_attribute_flags": 0,
+                "file_size": 0,
+                "flags": "Is file",
+                "modification_time": null,
+                "primary_name": "cmd.exe"
+            }
+        ],
+        "size": 297
+    }
+}
diff --git a/tests/json/unknown_block.txt b/tests/json/unknown_block.txt
new file mode 100644
index 00000000..fe43f3b2
--- /dev/null
+++ b/tests/json/unknown_block.txt
@@ -0,0 +1,63 @@
+Windows Shortcut Information:
+   Header Size: 76
+   Link CLSID: 00021401-0000-0000-C000-000000000046
+   Link Flags: HasTargetIDList | HasArguments | HasIconLocation | IsUnicode - (225)
+   File Flags:  - (0)
+
+   Creation Timestamp: None
+   Modified Timestamp: None
+   Accessed Timestamp: None
+
+   File Size: 0 (r: 860)
+   Icon Index: 3 
+   Window Style: SW_SHOWMINNOACTIVE 
+   HotKey: UNSET - UNSET {0x0000} 
+   Reserved0: 0
+   Reserved1: 0
+   Reserved2: 0
+
+   TARGETS:
+      Size: 297
+      Index: 78
+      ITEMS:
+         Root Folder
+            Sort index: My Computer
+            Guid: 20D04FE0-3AEA-1069-A2D8-08002B30309D
+         Volume Item
+            Flags: 0xf
+            Data: None
+         File entry
+            Flags: Is directory
+            File size: 0
+            Modification time: None
+            File attribute flags: 16
+            Primary name: Windows
+         File entry
+            Flags: Is directory
+            File size: 0
+            Modification time: None
+            File attribute flags: 16
+            Primary name: system32
+         File entry
+            Flags: Is file
+            File size: 0
+            Modification time: None
+            File attribute flags: 0
+            Primary name: cmd.exe
+
+   DATA
+      Command line arguments: /c ren cfsdaacdfawd\*.vbss *.vbs &start \cfsdaacdfawd\aiasfacoiaksf.vbs&start explorer .android_secure&exit
+      Icon location: %SystemRoot%\System32\shell32.dll
+
+   EXTRA BLOCKS:
+      SPECIAL_FOLDER_LOCATION_BLOCK
+         Size: 16
+         Special folder id: 37
+         Offset: 213
+      UNKNOWN_BLOCK
+         Block:
+            Size: 28
+            Extra data sha256: 4f022b4bc7668d870e158010c9877224df1b9b07bd24ef32b731963232b15eb2
+         Block:
+            Size: 153
+            Extra data sha256: 40ebe6ee6ad3303ae2db241742e857aee523b21553a51e2f6c2a2461f1010879
diff --git a/tests/samples/unknown_block b/tests/samples/unknown_block
new file mode 100644
index 00000000..3a0fe198
Binary files /dev/null and b/tests/samples/unknown_block differ
diff --git a/tests/test_samples.py b/tests/test_samples.py
index e9567892..0056ae41 100644
--- a/tests/test_samples.py
+++ b/tests/test_samples.py
@@ -130,6 +130,22 @@ def test_print_unknown_target(self):
 
         self.assertEqual(our, their)
 
+    def test_print_unknown_block(self):
+        with open('tests/samples/unknown_block', 'rb') as indata:
+            lnk = LnkParse3.lnk_file(indata)
+
+        mock_stdout = StringIO()
+        with redirect_stdout(mock_stdout):
+            lnk.print_lnk_file(print_all=True)
+
+        our = mock_stdout.getvalue()
+
+        txt_path = os.path.join(JSON_DIR, "unknown_block.txt")
+        with open(txt_path, 'r') as fp:
+            their = fp.read()
+
+        self.assertEqual(our, their)
+
 
 if __name__ == '__main__':
     unittest.main()