diff --git a/meta/generate_tag_defs.py b/meta/generate_tag_defs.py
index 32ba837..c1f5d0b 100644
--- a/meta/generate_tag_defs.py
+++ b/meta/generate_tag_defs.py
@@ -43,7 +43,7 @@ def generate_tag_class(output: TextIO, tag: TagInfo):
     prop_unions_gen = []
     for prop in tag.properties:
         # Yucky hard-coded spaces, I can't be bothered to fix this
-        prop_args_gen.append(f"        {prop.name}: Any = None,")
+        prop_args_gen.append(f"        {prop.name}: Any = {prop.default!r},")
         prop_unions_gen.append(f"            '{prop.name}': {prop.name},")
 
     prop_args = '\n'.join(prop_args_gen).strip()
diff --git a/meta/scrape_tags.py b/meta/scrape_tags.py
index ff09490..78d828e 100644
--- a/meta/scrape_tags.py
+++ b/meta/scrape_tags.py
@@ -98,11 +98,23 @@ def domXrefReplace(lookup: str, presentation: Optional[str] = None) -> str:
 """Type definition for info grabbed from MDN docs"""
 
 
+class PropYmlItem(TypedDict):
+    """
+    Properties of a tag, defined in tags.yml
+    """
+
+    doc: str
+    """Documentation for the property"""
+
+    default: NotRequired[str]
+    """Default value of the property"""
+
+
 class TagsYmlItem(TypedDict):
     """
     A tag which has suggested keys
     """
-    properties: NotRequired[dict[str, str]]
+    properties: NotRequired[dict[str, str | PropYmlItem]]
     """Mapping of properties used by the tag (name: description)"""
 
     base: NotRequired[str]
@@ -127,9 +139,14 @@ class Prop:
     Name of the property
     """
 
-    description: Optional[str]
+    doc: Optional[str]
     """
-    Description of the property if applicable
+    Documentation of the property if applicable
+    """
+
+    default: Optional[str]
+    """
+    Default value for the property
     """
 
 
@@ -347,8 +364,14 @@ def prop_entries_to_object(
         return []
 
     props = []
-    for name, description in tag_data['properties'].items():
-        props.append(Prop(name, description))
+    for name, value in tag_data['properties'].items():
+        if isinstance(value, str):
+            doc: Optional[str] = value
+            default: Optional[str] = None
+        else:
+            doc = value.get("doc")
+            default = value.get("default")
+        props.append(Prop(name, doc, default))
     return props
 
 
diff --git a/meta/tags.yml b/meta/tags.yml
index 529f5a7..ca9bf2a 100644
--- a/meta/tags.yml
+++ b/meta/tags.yml
@@ -23,6 +23,12 @@ a:
     href: URL of page to link to
     target: Use "_blank" to open in a new tab
 
+script:
+  properties:
+    type:
+      doc: Type of script to use
+      default: text/javascript
+
 p:
   base: StylableTag
 
diff --git a/pyhtml/__tags/generated.py b/pyhtml/__tags/generated.py
index 8f09ef6..32e15e1 100644
--- a/pyhtml/__tags/generated.py
+++ b/pyhtml/__tags/generated.py
@@ -3340,7 +3340,7 @@ class script(Tag):
     def __init__(
         self,
         *children: Any,
-        
+        type: Any = 'text/javascript',
         **properties: Any,
     ) -> None:
         """
@@ -3349,14 +3349,14 @@ def __init__(
         [View full documentation](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script)
         """
         properties |= {
-            
+            'type': type,
         }
         super().__init__(*children, **properties)
 
     def __call__(
         self,
         *children: Any,
-        
+        type: Any = 'text/javascript',
         **properties: Any,
     ):
         """
@@ -3365,7 +3365,7 @@ def __call__(
         [View full documentation](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script)
         """
         properties |= {
-            
+            'type': type,
         }
         return super().__call__(*children, **properties)
 
diff --git a/tests/basic_rendering_test.py b/tests/basic_rendering_test.py
index daebd04..0a21613 100644
--- a/tests/basic_rendering_test.py
+++ b/tests/basic_rendering_test.py
@@ -103,7 +103,8 @@ def test_larger_page():
         '    <title>',
         '      Hello, world!',
         '    </title>',
-        '    <script src="http://example.com/script.js"></script>',
+        '    <script src="http://example.com/script.js" '
+        'type="text/javascript"></script>',
         '  </head>',
         '  <body>',
         '    <h1>',