diff --git a/pandas/io/feather_format.py b/pandas/io/feather_format.py
index 6fe22f14c2c5b..25a6db675265d 100644
--- a/pandas/io/feather_format.py
+++ b/pandas/io/feather_format.py
@@ -39,7 +39,7 @@ def to_feather(df, path):
     if not isinstance(df.index, Int64Index):
         raise ValueError(
             "feather does not support serializing {} "
-            "for the index; you can .reset_index()"
+            "for the index; you can .reset_index() "
             "to make the index into column(s)".format(type(df.index))
         )