diff --git a/pandas/core/series.py b/pandas/core/series.py
index c79ecd554bed5..e4b69e2b62e9b 100644
--- a/pandas/core/series.py
+++ b/pandas/core/series.py
@@ -3441,8 +3441,9 @@ def sort_values(
                 )
             ascending = ascending[0]
 
-        if not is_bool(ascending):
-            raise ValueError("ascending must be boolean")
+        
+        if type(ascending)!=bool:
+            raise ValueError("ascending should be of type bool")
 
         if na_position not in ["first", "last"]:
             raise ValueError(f"invalid na_position: {na_position}")