diff --git a/pennylane/templates/state_preparations/cosine_window.py b/pennylane/templates/state_preparations/cosine_window.py
index 1698469fbf5..7ae611f7950 100644
--- a/pennylane/templates/state_preparations/cosine_window.py
+++ b/pennylane/templates/state_preparations/cosine_window.py
@@ -42,6 +42,7 @@ class CosineWindow(StatePrepBase):
 
 
     .. seealso:: :class:`~.QuantumPhaseEstimation`, :class:`~.QFT`
+    
     **Details:**
 
     * Number of wires: Any (the operation can act on any number of wires)