diff --git a/docs/nix/render_options/__init__.py b/docs/nix/render_options/__init__.py
index a20dfffb6..f5331110c 100644
--- a/docs/nix/render_options/__init__.py
+++ b/docs/nix/render_options/__init__.py
@@ -32,7 +32,7 @@ from typing import Any
 from clan_lib.errors import ClanError
 from clan_lib.services.modules import (
     CategoryInfo,
-    ModuleFrontmatter,
+    ModuleManifest,
 )
 
 # Get environment variables
@@ -336,10 +336,9 @@ Learn how to use `clanServices` in practice in the [Using clanServices guide](..
         # output += f"`clan.modules.{module_name}`\n"
         output += f"*{module_info['manifest']['description']}*\n"
 
-        fm = ModuleFrontmatter("")
         # output += "## Categories\n\n"
         output += render_categories(
-            module_info["manifest"]["categories"], fm.categories_info
+            module_info["manifest"]["categories"], ModuleManifest.categories_info()
         )
 
         output += f"{module_info['manifest']['readme']}\n"
diff --git a/pkgs/clan-cli/clan_lib/services/modules.py b/pkgs/clan-cli/clan_lib/services/modules.py
index 2627c128f..1989ef0a3 100644
--- a/pkgs/clan-cli/clan_lib/services/modules.py
+++ b/pkgs/clan-cli/clan_lib/services/modules.py
@@ -27,8 +27,8 @@ class ModuleManifest:
     categories: list[str] = field(default_factory=lambda: ["Uncategorized"])
     features: list[str] = field(default_factory=list)
 
-    @property
-    def categories_info(self) -> dict[str, CategoryInfo]:
+    @classmethod
+    def categories_info(cls) -> dict[str, CategoryInfo]:
         category_map: dict[str, CategoryInfo] = {
             "AudioVideo": {
                 "color": "#AEC6CF",
@@ -54,14 +54,14 @@ class ModuleManifest:
 
     def __post_init__(self) -> None:
         for category in self.categories:
-            if category not in self.categories_info:
+            if category not in ModuleManifest.categories_info():
                 msg = f"Invalid category: {category}"
                 raise ValueError(msg)
 
     @classmethod
     def from_dict(cls, data: dict) -> "ModuleManifest":
         """
-        Create an instance of ModuleFrontmatter from a dictionary.
+        Create an instance of this class from a dictionary.
         Drops any keys that are not defined in the dataclass.
         """
         valid = {f.name for f in fields(cls)}