diff --git a/pandas/core/series.py b/pandas/core/series.py
index 8ef9adb1d24a4..6367fb4fe0396 100644
--- a/pandas/core/series.py
+++ b/pandas/core/series.py
@@ -1442,7 +1442,7 @@ def searchsorted(self, v, side='left', sorter=None):
 
     def append(self, to_append, verify_integrity=False):
         """
-        Concatenate two or more Series. The indexes must not overlap
+        Concatenate two or more Series.
 
         Parameters
         ----------