diff --git a/volmdlr/faces.py b/volmdlr/faces.py
index 02c86f74d..a97bf36e6 100644
--- a/volmdlr/faces.py
+++ b/volmdlr/faces.py
@@ -253,7 +253,7 @@ def from_contours3d(cls, surface, contours3d: List[volmdlr.wires.Contour3D], nam
         return face
 
     def to_step(self, current_id):
-        """Tranforms a Face 3D into a Step object."""
+        """Transforms a Face 3D into a Step object."""
         content, surface3d_ids = self.surface3d.to_step(current_id)
         current_id = max(surface3d_ids)