diff --git a/documentation/en/default-lotus-miner-config.toml b/documentation/en/default-lotus-miner-config.toml
index ef3b23b5c..ab9924c02 100644
--- a/documentation/en/default-lotus-miner-config.toml
+++ b/documentation/en/default-lotus-miner-config.toml
@@ -534,6 +534,14 @@
   # env var: LOTUS_STORAGE_ALLOWREGENSECTORKEY
   #AllowRegenSectorKey = true
 
+  # Assigner specifies the worker assigner to use when scheduling tasks.
+  # "utilization" (default) - assign tasks to workers with lowest utilization.
+  # "spread" - assign tasks to as many distinct workers as possible.
+  #
+  # type: string
+  # env var: LOTUS_STORAGE_ASSIGNER
+  #Assigner = "utilization"
+
   # ResourceFiltering instructs the system which resource filtering strategy
   # to use when evaluating tasks against this worker. An empty value defaults
   # to "hardware".
diff --git a/extern/sector-storage/sched_assigner_spread.go b/extern/sector-storage/sched_assigner_spread.go
index 2623c9c06..72a389993 100644
--- a/extern/sector-storage/sched_assigner_spread.go
+++ b/extern/sector-storage/sched_assigner_spread.go
@@ -60,7 +60,7 @@ func SpreadWS(sh *Scheduler, queueLen int, acceptableWindows [][]int, windows []
 			"worker", bestWid,
 			"assigned", bestAssigned)
 
-		workerAssigned[bestWid] += 1
+		workerAssigned[bestWid]++
 		windows[selectedWindow].Todo = append(windows[selectedWindow].Todo, task)
 
 		rmQueue = append(rmQueue, sqi)
diff --git a/node/config/doc_gen.go b/node/config/doc_gen.go
index 757d80932..a9c7ed8f2 100644
--- a/node/config/doc_gen.go
+++ b/node/config/doc_gen.go
@@ -756,6 +756,14 @@ This parameter is ONLY applicable if the retrieval pricing policy strategy has b
 
 			Comment: ``,
 		},
+		{
+			Name: "Assigner",
+			Type: "string",
+
+			Comment: `Assigner specifies the worker assigner to use when scheduling tasks.
+"utilization" (default) - assign tasks to workers with lowest utilization.
+"spread" - assign tasks to as many distinct workers as possible.`,
+		},
 		{
 			Name: "ResourceFiltering",
 			Type: "sectorstorage.ResourceFilteringStrategy",