diff --git a/src/pyedb/dotnet/edb.py b/src/pyedb/dotnet/edb.py
index 9a01ef4115..6562606753 100644
--- a/src/pyedb/dotnet/edb.py
+++ b/src/pyedb/dotnet/edb.py
@@ -3255,7 +3255,8 @@ def add_design_variable(self, variable_name, variable_value, is_parameter=False,
         var_server = self.variable_exists(variable_name)
         if not var_server[0]:
             var_server[1].AddVariable(variable_name, self.edb_value(variable_value), is_parameter)
-            var_server[1].SetVariableDescription(variable_name, description)
+            if description:
+                var_server[1].SetVariableDescription(variable_name, description)
             return True, var_server[1]
         self.logger.error("Variable %s already exists.", variable_name)
         return False, var_server[1]