diff --git a/cmd/prometheus/testdata/features.json b/cmd/prometheus/testdata/features.json
index 60e6b65b40..e68b7def1e 100644
--- a/cmd/prometheus/testdata/features.json
+++ b/cmd/prometheus/testdata/features.json
@@ -251,6 +251,7 @@
     "exemplar_storage": false,
     "isolation": true,
     "native_histograms": true,
+    "st_storage": false,
     "use_uncached_io": false
   },
   "ui": {
diff --git a/tsdb/db.go b/tsdb/db.go
index c793ace522..8c1fffbed4 100644
--- a/tsdb/db.go
+++ b/tsdb/db.go
@@ -868,6 +868,7 @@ func Open(dir string, l *slog.Logger, r prometheus.Registerer, opts *Options, st
 		opts.FeatureRegistry.Set(features.TSDB, "isolation", !opts.IsolationDisabled)
 		opts.FeatureRegistry.Set(features.TSDB, "use_uncached_io", opts.UseUncachedIO)
 		opts.FeatureRegistry.Enable(features.TSDB, "native_histograms")
+		opts.FeatureRegistry.Set(features.TSDB, "st_storage", opts.EnableSTStorage)
 	}
 
 	return open(dir, l, r, opts, rngs, stats)