diff --git a/physics/rotational_partition b/physics/rotational_partition
index 73095cbbd..5dfbb3b73 100644
--- a/physics/rotational_partition
+++ b/physics/rotational_partition
@@ -1,7 +1,7 @@
-def rotation_partition_function(moment_of_inertia: float, 
+def rotation_partition_function(moment_of_inertia: float,
     temperature: float) -> float:
     """
-    Calculates the rotational partition 
+    Calculates the rotational partition
     function for linear molecules.
 
     >>> round(rotation_partition_function(1e-46, 300), 4)