diff --git a/nifty5/linearization.py b/nifty5/linearization.py
index b1b39272f6b6bb2dcbae029bfd7dcbf368e970cf..db95c25df1fd41a6581589864fb0b0ed05dba736 100644
--- a/nifty5/linearization.py
+++ b/nifty5/linearization.py
@@ -298,6 +298,9 @@ class Linearization(object):
             tmp2 = makeOp(1. - (tmp == min) - (tmp == max))
         return self.new(tmp, tmp2(self._jac))
 
+    def sqrt(self):
+        return self.__pow__(0.5)
+
     def sin(self):
         tmp = self._val.sin()
         tmp2 = self._val.cos()