diff --git a/geojson_pydantic/geometries.py b/geojson_pydantic/geometries.py
index b1f556a..38c7ccf 100644
--- a/geojson_pydantic/geometries.py
+++ b/geojson_pydantic/geometries.py
@@ -109,7 +109,7 @@ def wkt(self) -> str:
 class Point(_GeometryBase):
     """Point Model"""
 
-    type: Literal["Point"]
+    type: Literal["Point"] = "Point"
     coordinates: Position
 
     def __wkt_coordinates__(self, coordinates: Any, force_z: bool) -> str:
@@ -125,7 +125,7 @@ def has_z(self) -> bool:
 class MultiPoint(_GeometryBase):
     """MultiPoint Model"""
 
-    type: Literal["MultiPoint"]
+    type: Literal["MultiPoint"] = "MultiPoint"
     coordinates: MultiPointCoords
 
     def __wkt_coordinates__(self, coordinates: Any, force_z: bool) -> str:
@@ -144,7 +144,7 @@ def has_z(self) -> bool:
 class LineString(_GeometryBase):
     """LineString Model"""
 
-    type: Literal["LineString"]
+    type: Literal["LineString"] = "LineString"
     coordinates: LineStringCoords
 
     def __wkt_coordinates__(self, coordinates: Any, force_z: bool) -> str:
@@ -160,7 +160,7 @@ def has_z(self) -> bool:
 class MultiLineString(_GeometryBase):
     """MultiLineString Model"""
 
-    type: Literal["MultiLineString"]
+    type: Literal["MultiLineString"] = "MultiLineString"
     coordinates: MultiLineStringCoords
 
     def __wkt_coordinates__(self, coordinates: Any, force_z: bool) -> str:
@@ -176,7 +176,7 @@ def has_z(self) -> bool:
 class Polygon(_GeometryBase):
     """Polygon Model"""
 
-    type: Literal["Polygon"]
+    type: Literal["Polygon"] = "Polygon"
     coordinates: PolygonCoords
 
     def __wkt_coordinates__(self, coordinates: Any, force_z: bool) -> str:
@@ -224,7 +224,7 @@ def from_bounds(
 class MultiPolygon(_GeometryBase):
     """MultiPolygon Model"""
 
-    type: Literal["MultiPolygon"]
+    type: Literal["MultiPolygon"] = "MultiPolygon"
     coordinates: MultiPolygonCoords
 
     def __wkt_coordinates__(self, coordinates: Any, force_z: bool) -> str:
@@ -248,7 +248,7 @@ def check_closure(cls, coordinates: List) -> List:
 class GeometryCollection(_GeoJsonBase):
     """GeometryCollection Model"""
 
-    type: Literal["GeometryCollection"]
+    type: Literal["GeometryCollection"] = "GeometryCollection"
     geometries: List[Geometry]
 
     def __iter__(self) -> Iterator[Geometry]:  # type: ignore [override]
@@ -273,7 +273,7 @@ def wkt(self) -> str:
 
         # Get the wkt from each of the geometries in the collection
         geometries = (
-            f'({", ".join(geom.wkt for geom in self.geometries)})'
+            f"({', '.join(geom.wkt for geom in self.geometries)})"
             if self.geometries
             else "EMPTY"
         )