diff --git a/pandas/core/series.py b/pandas/core/series.py
index a5e58a6d1c6ac..8f9f574dfdc9d 100644
--- a/pandas/core/series.py
+++ b/pandas/core/series.py
@@ -5650,7 +5650,7 @@ def case_when(
 
         Parameters
         ----------
-        caselist : A list of tuples of conditions and expected replacements.
+        caselist : A list of tuples of conditions and expected replacements
             Takes the form:  ``(condition0, replacement0)``,
             ``(condition1, replacement1)``, ... .
             ``condition`` should be a 1-D boolean array-like object