diff --git a/pandas/core/reshape/reshape.py b/pandas/core/reshape/reshape.py
index e8ef393da38d9..4e6c8a64fde6b 100644
--- a/pandas/core/reshape/reshape.py
+++ b/pandas/core/reshape/reshape.py
@@ -241,7 +241,7 @@ def get_result(self, values, value_columns, fill_value) -> DataFrame:
         index = self.new_index
 
         return self.constructor(
-            values, index=index, columns=columns, dtype=values.dtype
+            values, index=index, columns=columns, dtype=values.dtype, copy=False
         )
 
     def get_new_values(self, values, fill_value=None):