diff --git a/internal/rootcoord/create_collection_task.go b/internal/rootcoord/create_collection_task.go
index 1e6d281b3f..1550f247fd 100644
--- a/internal/rootcoord/create_collection_task.go
+++ b/internal/rootcoord/create_collection_task.go
@@ -54,7 +54,7 @@ func (t *createCollectionTask) validate() error {
 	shardsNum := int64(t.Req.GetShardsNum())
 
 	cfgMaxShardNum := Params.RootCoordCfg.DmlChannelNum
-	if shardsNum >= cfgMaxShardNum {
+	if shardsNum > cfgMaxShardNum {
 		return fmt.Errorf("shard num (%d) exceeds max configuration (%d)", shardsNum, cfgMaxShardNum)
 	}