diff --git a/internal/config/cache/config.go b/internal/config/cache/config.go
index 23b40b0b6..efb9c00ac 100644
--- a/internal/config/cache/config.go
+++ b/internal/config/cache/config.go
@@ -27,6 +27,13 @@ import (
 	"github.com/minio/pkg/ellipses"
 )
 
+const (
+	// WriteBack allows staging and write back of cached content for single object uploads
+	WriteBack = "writeback"
+	// WriteThrough allows caching multipart uploads to disk synchronously
+	WriteThrough = "writethrough"
+)
+
 // Config represents cache config settings
 type Config struct {
 	Enabled         bool     `json:"-"`
@@ -39,7 +46,7 @@ type Config struct {
 	WatermarkLow    int      `json:"watermark_low"`
 	WatermarkHigh   int      `json:"watermark_high"`
 	Range           bool     `json:"range"`
-	CacheCommitMode string   `json:"commit_mode"`
+	CacheCommitMode string   `json:"commit"`
 }
 
 // UnmarshalJSON - implements JSON unmarshal interface for unmarshalling
@@ -157,7 +164,7 @@ func parseCacheExcludes(excludes string) ([]string, error) {
 
 func parseCacheCommitMode(commitStr string) (string, error) {
 	switch strings.ToLower(commitStr) {
-	case "writeback", "writethrough":
+	case WriteBack, WriteThrough:
 		return strings.ToLower(commitStr), nil
 	default:
 		return "", config.ErrInvalidCacheCommitValue(nil).Msg("cache commit value must be `writeback` or `writethrough`")
diff --git a/internal/config/cache/lookup.go b/internal/config/cache/lookup.go
index 42f29fed5..6b88c67c8 100644
--- a/internal/config/cache/lookup.go
+++ b/internal/config/cache/lookup.go
@@ -56,7 +56,7 @@ const (
 	DefaultAfter         = "0"
 	DefaultWaterMarkLow  = "70"
 	DefaultWaterMarkHigh = "80"
-	DefaultCacheCommit   = "writethrough"
+	DefaultCacheCommit   = WriteThrough
 )
 
 // DefaultKVS - default KV settings for caching.
@@ -223,7 +223,7 @@ func LookupConfig(kvs config.KVS) (Config, error) {
 		if err != nil {
 			return cfg, err
 		}
-		if cfg.After > 0 && cfg.CacheCommitMode != "" {
+		if cfg.After > 0 && cfg.CacheCommitMode != WriteThrough {
 			err := errors.New("cache after cannot be used with commit writeback")
 			return cfg, config.ErrInvalidCacheSetting(err)
 		}