diff --git a/lib/sb3.js b/lib/sb3.js
index 27eec8d..c0dffd2 100644
--- a/lib/sb3.js
+++ b/lib/sb3.js
@@ -101,7 +101,7 @@ const blocks = function (targets) {
                     opcode = 'data_variable';
                     break;
                 case (13):
-                    opcode = 'data_list';
+                    opcode = 'data_listcontents';
                     break;
                 }
             }
diff --git a/test/unit/sb3.js b/test/unit/sb3.js
index f7148b7..4f4b180 100644
--- a/test/unit/sb3.js
+++ b/test/unit/sb3.js
@@ -377,12 +377,12 @@ test('correctly handling primitve reporter blocks: list and variable', t => {
         t.equal(result.blocks.count, 3);
         t.equal(result.blocks.unique, 3);
         t.same(result.blocks.id, [
-            'data_list',
+            'data_listcontents',
             'motion_changexby',
             'data_variable'
         ]);
         t.same(result.blocks.frequency, {
-            data_list: 1,
+            data_listcontents: 1,
             motion_changexby: 1,
             data_variable: 1
         });