diff --git a/noko_client/schemas/tags_parameters.py b/noko_client/schemas/tags_parameters.py
index deffc51..505d3eb 100644
--- a/noko_client/schemas/tags_parameters.py
+++ b/noko_client/schemas/tags_parameters.py
@@ -9,10 +9,10 @@
 
 
 class GetNokoTagsParameters(BaseModel):
-    """Process and validate parameters to make GET requests to the `entries` endpoint."""
+    """Process and validate parameters to make GET requests to the `tags` endpoint."""
 
-    name: str | None
-    billable: str | bool | None
+    name: str | None = None
+    billable: str | bool | None = None
 
     _format_booleans = field_validator("billable")(format_booleans)