diff --git a/pandas/core/generic.py b/pandas/core/generic.py
index 42cd74a0ca781..cfa0320c6fdd7 100644
--- a/pandas/core/generic.py
+++ b/pandas/core/generic.py
@@ -2413,7 +2413,8 @@ def to_json(
             the default is 'epoch'.
         double_precision : int, default 10
             The number of decimal places to use when encoding
-            floating point values.
+            floating point values. The possible maximal value is 15.
+            Passing double_precision greater than 15 will raise a ValueError.
         force_ascii : bool, default True
             Force encoded string to be ASCII.
         date_unit : str, default 'ms' (milliseconds)