diff --git a/script/local.py b/script/local.py
index e703bf6..878891d 100644
--- a/script/local.py
+++ b/script/local.py
@@ -18,7 +18,7 @@ def angle(e,h=1.0,k=1.0,l=1.0, deg =True, ln = False,bent = False):
     if bent:
         rho	= 2*19.65*8.35/28*math.sin(a)
         dt	= 0.2e-3/rho*0.279
-        d0	= 2*5.43102*(1+dt)/math.sqrt(h^2+k^2+l^2)
+        d0	= 2*5.43102*(1+dt)/math.sqrt(h**2+k**2+l**2)
         a   = math.asin(12.39842/d0/E)   
     a = a/dtor if deg else a
     return a