diff --git a/mitmproxy/contentviews/msgpack.py b/mitmproxy/contentviews/msgpack.py
index 92aeb8b39..8de6c9abb 100644
--- a/mitmproxy/contentviews/msgpack.py
+++ b/mitmproxy/contentviews/msgpack.py
@@ -64,11 +64,11 @@ def format_msgpack(
 
     elif type(data) is list:
         output[-1] += [("text", "[")]
-        for item in data:
+
+        for count, item in enumerate(data):
             output.append([indent, ("text", "    ")])
             format_msgpack(item, output, indent_count + 1)
-
-            if item != data[-1]:
+            if count != len(data) - 1:
                 output[-1] += [("text", ",")]
 
         output.append([indent, ("text", "]")])
diff --git a/test/mitmproxy/contentviews/test_msgpack.py b/test/mitmproxy/contentviews/test_msgpack.py
index 65c8487f0..d3c53d3a9 100644
--- a/test/mitmproxy/contentviews/test_msgpack.py
+++ b/test/mitmproxy/contentviews/test_msgpack.py
@@ -57,7 +57,9 @@ def test_format_msgpack():
         [("text", ""), ("text", "}")],
     ]
 
-    assert list(msgpack.format_msgpack({"object": {"key": "value"}, "list": [1]})) == [
+    assert list(
+        msgpack.format_msgpack({"object": {"key": "value"}, "list": [0, 0, 1, 0, 0]})
+    ) == [
         [("text", "{")],
         [
             ("text", ""),
@@ -81,7 +83,31 @@ def test_format_msgpack():
             ("text", ": "),
             ("text", "["),
         ],
-        [("text", "    "), ("text", "    "), ("Token_Literal_Number", "1")],
+        [
+            ("text", "    "),
+            ("text", "    "),
+            ("Token_Literal_Number", "0"),
+            ("text", ","),
+        ],
+        [
+            ("text", "    "),
+            ("text", "    "),
+            ("Token_Literal_Number", "0"),
+            ("text", ","),
+        ],
+        [
+            ("text", "    "),
+            ("text", "    "),
+            ("Token_Literal_Number", "1"),
+            ("text", ","),
+        ],
+        [
+            ("text", "    "),
+            ("text", "    "),
+            ("Token_Literal_Number", "0"),
+            ("text", ","),
+        ],
+        [("text", "    "), ("text", "    "), ("Token_Literal_Number", "0")],
         [("text", "    "), ("text", "]")],
         [("text", ""), ("text", "}")],
     ]