--- a/tests/golden_files/serialize.json
+++ b/tests/golden_files/serialize.json
@@ -1294,7 +1294,7 @@
                             "type": "line",
                             "is_current": false,
                             "lineno": 29,
-                            "text": "<span class=\"k\">def</span> <span class=\"nf\">bar</span><span class=\"p\">():</span>"
+                            "text": "<span class=\"k\">def</span><span class=\"w\"> </span><span class=\"nf\">bar</span><span class=\"p\">():</span>"
                         },
                         {
                             "type": "line",
@@ -1323,7 +1323,7 @@
                             "type": "line",
                             "is_current": false,
                             "lineno": 6,
-                            "text": "<span class=\"k\">def</span> <span class=\"nf\">foo</span><span class=\"p\">(</span><span class=\"n\">n</span><span class=\"o\">=</span><span class=\"mi\">5</span><span class=\"p\">):</span>"
+                            "text": "<span class=\"k\">def</span><span class=\"w\"> </span><span class=\"nf\">foo</span><span class=\"p\">(</span><span class=\"n\">n</span><span class=\"o\">=</span><span class=\"mi\">5</span><span class=\"p\">):</span>"
                         },
                         {
                             "type": "line",
@@ -1369,7 +1369,7 @@
                             "type": "line",
                             "is_current": false,
                             "lineno": 6,
-                            "text": "<span class=\"k\">def</span> <span class=\"nf\">foo</span><span class=\"p\">(</span><span class=\"n\">n</span><span class=\"o\">=</span><span class=\"mi\">5</span><span class=\"p\">):</span>"
+                            "text": "<span class=\"k\">def</span><span class=\"w\"> </span><span class=\"nf\">foo</span><span class=\"p\">(</span><span class=\"n\">n</span><span class=\"o\">=</span><span class=\"mi\">5</span><span class=\"p\">):</span>"
                         },
                         {
                             "type": "line",
@@ -1425,7 +1425,7 @@
                             "type": "line",
                             "is_current": false,
                             "lineno": 6,
-                            "text": "<span class=\"k\">def</span> <span class=\"nf\">foo</span><span class=\"p\">(</span><span class=\"n\">n</span><span class=\"o\">=</span><span class=\"mi\">5</span><span class=\"p\">):</span>"
+                            "text": "<span class=\"k\">def</span><span class=\"w\"> </span><span class=\"nf\">foo</span><span class=\"p\">(</span><span class=\"n\">n</span><span class=\"o\">=</span><span class=\"mi\">5</span><span class=\"p\">):</span>"
                         },
                         {
                             "type": "line",
@@ -1489,7 +1489,7 @@
                             "type": "line",
                             "is_current": true,
                             "lineno": 26,
-                            "text": "    <span class=\"k\">raise</span> <span class=\"ne\">TypeError</span> <span class=\"kn\">from</span> <span class=\"nn\">e</span>"
+                            "text": "    <span class=\"k\">raise</span> <span class=\"ne\">TypeError</span> <span class=\"kn\">from</span><span class=\"w\"> </span><span class=\"nn\">e</span>"
                         }
                     ],
                     "variables": [