diff --git a/data/projects/circuitpython-custom-fs.yml b/data/projects/circuitpython-custom-fs.yml
index 4175b25..eb5ff87 100644
--- a/data/projects/circuitpython-custom-fs.yml
+++ b/data/projects/circuitpython-custom-fs.yml
@@ -27,3 +27,5 @@ general:
     - "electronic"
     - "python"
     - "circuitpython"
+  languages:
+    - "python"
diff --git a/data/projects/circuitpython-ebyte-e32.yml b/data/projects/circuitpython-ebyte-e32.yml
index f6a705b..7da1432 100644
--- a/data/projects/circuitpython-ebyte-e32.yml
+++ b/data/projects/circuitpython-ebyte-e32.yml
@@ -28,3 +28,5 @@ general:
     - "circuitpython"
     - "lora"
     - "library"
+  languages:
+    - "python"
diff --git a/website/content/metadata.py b/website/content/metadata.py
index dd93c9c..2cf46a8 100644
--- a/website/content/metadata.py
+++ b/website/content/metadata.py
@@ -39,7 +39,8 @@ class ContentGeneralMetadata:
     icon: str
     title_key: str
     subtitle_key: str
-    tags: list[str]
+    tags: list[str] = field(default_factory=list)
+    languages: list[str] = field(default_factory=list)
 
 
 @dataclass