diff --git a/packages/eventindexer/cmd/flags/indexer.go b/packages/eventindexer/cmd/flags/indexer.go
index 37c845599b..7e4b859d28 100644
--- a/packages/eventindexer/cmd/flags/indexer.go
+++ b/packages/eventindexer/cmd/flags/indexer.go
@@ -101,7 +101,7 @@ var (
 		Category: indexerCategory,
 		EnvVars:  []string{"SYNC_MODE"},
 	}
-	IndexNFTs = &cli.StringFlag{
+	IndexNFTs = &cli.BoolFlag{
 		Name:     "indexNfts",
 		Usage:    "Whether to index nft transfer events orn ot",
 		Required: false,
diff --git a/packages/eventindexer/indexer/config_test.go b/packages/eventindexer/indexer/config_test.go
index 8513c8a5b4..010c8dcb86 100644
--- a/packages/eventindexer/indexer/config_test.go
+++ b/packages/eventindexer/indexer/config_test.go
@@ -24,7 +24,6 @@ var (
 	subscriptionBackoff     = "30"
 	syncMode                = "sync"
 	watchMode               = "filter"
-	indexNFTs               = "true"
 	layer                   = "l1"
 )
 
@@ -93,7 +92,7 @@ func TestNewConfigFromCliContext(t *testing.T) {
 		"-" + flags.SubscriptionBackoff.Name, subscriptionBackoff,
 		"-" + flags.SyncMode.Name, syncMode,
 		"-" + flags.WatchMode.Name, watchMode,
-		"-" + flags.IndexNFTs.Name, indexNFTs,
+		"-" + flags.IndexNFTs.Name, "true",
 		"-" + flags.Layer.Name, layer,
 	}))
 }