diff --git a/docs/sources/shared/configuration.md b/docs/sources/shared/configuration.md
index b7a10bd142f98..132de42b81075 100644
--- a/docs/sources/shared/configuration.md
+++ b/docs/sources/shared/configuration.md
@@ -4231,7 +4231,7 @@ engine:
 
 # When true, querier directs ingester queries to the partition-ingesters instead
 # of the normal ingesters.
-# CLI flag: -querier.query_partition_ingesters
+# CLI flag: -querier.query-partition-ingesters
 [query_partition_ingesters: <boolean> | default = false]
 ```
 
diff --git a/pkg/querier/querier.go b/pkg/querier/querier.go
index a3a8309829f40..cdc4175f9fb0a 100644
--- a/pkg/querier/querier.go
+++ b/pkg/querier/querier.go
@@ -86,7 +86,7 @@ func (cfg *Config) RegisterFlags(f *flag.FlagSet) {
 	f.BoolVar(&cfg.QueryIngesterOnly, "querier.query-ingester-only", false, "When true, queriers only query the ingesters, and not stored data. This is useful when the object store is unavailable.")
 	f.BoolVar(&cfg.MultiTenantQueriesEnabled, "querier.multi-tenant-queries-enabled", false, "When true, allow queries to span multiple tenants.")
 	f.BoolVar(&cfg.PerRequestLimitsEnabled, "querier.per-request-limits-enabled", false, "When true, querier limits sent via a header are enforced.")
-	f.BoolVar(&cfg.QueryPartitionIngesters, "querier.query_partition_ingesters", false, "When true, querier directs ingester queries to the partition-ingesters instead of the normal ingesters.")
+	f.BoolVar(&cfg.QueryPartitionIngesters, "querier.query-partition-ingesters", false, "When true, querier directs ingester queries to the partition-ingesters instead of the normal ingesters.")
 }
 
 // Validate validates the config.