diff --git a/asv_bench/benchmarks/groupby.py b/asv_bench/benchmarks/groupby.py
index bf210352bcb5d..b4d9db95af163 100644
--- a/asv_bench/benchmarks/groupby.py
+++ b/asv_bench/benchmarks/groupby.py
@@ -126,6 +126,9 @@ def setup(self, data, key):
     def time_series_groups(self, data, key):
         self.ser.groupby(self.ser).groups
 
+    def time_series_indices(self, data, key):
+        self.ser.groupby(self.ser).indices
+
 
 class GroupManyLabels: