diff --git a/src/cutecoin/core/community.py b/src/cutecoin/core/community.py
index 8ada13520c0edfdda6e3f0ecdf4392363a7e9abe..8c2aec288908ef0c4762b6df187d047f7d46e319 100644
--- a/src/cutecoin/core/community.py
+++ b/src/cutecoin/core/community.py
@@ -142,7 +142,7 @@ class Community(QObject):
         :return: The computed UD or 1 if no UD was generated.
         """
         block = self.get_ud_block()
-        if block:
+        if block and block != qtbma.blockchain.Block.null_value:
             return math.ceil(
                 max(
                     self.dividend,
diff --git a/src/cutecoin/core/money/relative.py b/src/cutecoin/core/money/relative.py
index ea6492af150fc1d1e676784fa725e6e6d952e520..39aab280eb752d06bf2289b69a6f387fb75c5994 100644
--- a/src/cutecoin/core/money/relative.py
+++ b/src/cutecoin/core/money/relative.py
@@ -25,8 +25,7 @@ class Relative():
 
     def value(self):
         """
-        Return relaive value of amount
-    type
+        Return relative value of amount
         :param int amount:   Value
         :param cutecoin.core.community.Community community: Community instance
         :return: float