diff --git a/optimus/dataframe/columns.py b/optimus/dataframe/columns.py
index 10b0e948..8853952f 100644
--- a/optimus/dataframe/columns.py
+++ b/optimus/dataframe/columns.py
@@ -337,9 +337,6 @@ def cast(input_cols=None, dtype=None, output_cols=None, columns=None):
         :return: Spark DataFrame
         """
 
-        if dtype is None:
-            RaiseIt.value_error(dtype, "datatype")
-
         _dtype = []
         # Parse params
         if columns is None: