diff --git a/galgebra/mv.py b/galgebra/mv.py
index 7a652123..cda90822 100644
--- a/galgebra/mv.py
+++ b/galgebra/mv.py
@@ -815,7 +815,7 @@ def __ror__(self, A):  # dot (|) product
     def __pow__(self, n):  # Integer power operator
         if not isinstance(n, int):
             raise ValueError('!!!!Multivector power can only be to integer power!!!!')
-        
+
         if n < 0:
             return (self**(-n)).inv()