diff --git a/internal/fs/fs_local_vss.go b/internal/fs/fs_local_vss.go
index de30bcedb..0f983d136 100644
--- a/internal/fs/fs_local_vss.go
+++ b/internal/fs/fs_local_vss.go
@@ -14,8 +14,8 @@ import (
 
 // VSSConfig holds extended options of windows volume shadow copy service.
 type VSSConfig struct {
-	ExcludeAllMountPoints bool          `option:"excludeallmountpoints" help:"exclude mountpoints from snapshotting on all volumes"`
-	ExcludeVolumes        string        `option:"excludevolumes" help:"semicolon separated list of volumes to exclude from snapshotting (ex. 'c:\\;e:\\mnt;\\\\?\\Volume{...}')"`
+	ExcludeAllMountPoints bool          `option:"exclude-all-mount-points" help:"exclude mountpoints from snapshotting on all volumes"`
+	ExcludeVolumes        string        `option:"exclude-volumes" help:"semicolon separated list of volumes to exclude from snapshotting (ex. 'c:\\;e:\\mnt;\\\\?\\Volume{...}')"`
 	Timeout               time.Duration `option:"timeout" help:"time that the VSS can spend creating snapshot before timing out"`
 	Provider              string        `option:"provider" help:"VSS provider identifier which will be used for snapshotting"`
 }
@@ -80,7 +80,7 @@ func parseMountPoints(list string, msgError ErrorHandler) (volumes map[string]st
 	}
 	for _, s := range strings.Split(list, ";") {
 		if v, err := GetVolumeNameForVolumeMountPoint(s); err != nil {
-			msgError(s, errors.Errorf("failed to parse vss.excludevolumes [%s]: %s", s, err))
+			msgError(s, errors.Errorf("failed to parse vss.exclude-volumes [%s]: %s", s, err))
 		} else {
 			if volumes == nil {
 				volumes = make(map[string]struct{})
diff --git a/internal/fs/fs_local_vss_test.go b/internal/fs/fs_local_vss_test.go
index 23e86b911..9e11b6c6e 100644
--- a/internal/fs/fs_local_vss_test.go
+++ b/internal/fs/fs_local_vss_test.go
@@ -70,8 +70,8 @@ func TestVSSConfig(t *testing.T) {
 		},
 		{
 			options.Options{
-				"vss.excludeallmountpoints": "t",
-				"vss.provider":              "{b5946137-7b9f-4925-af80-51abd60b20d5}",
+				"vss.exclude-all-mount-points": "t",
+				"vss.provider":                 "{b5946137-7b9f-4925-af80-51abd60b20d5}",
 			},
 			config{
 				excludeAllMountPoints: true,
@@ -81,10 +81,10 @@ func TestVSSConfig(t *testing.T) {
 		},
 		{
 			options.Options{
-				"vss.excludeallmountpoints": "0",
-				"vss.excludevolumes":        "",
-				"vss.timeout":               "120s",
-				"vss.provider":              "Microsoft Software Shadow Copy provider 1.0",
+				"vss.exclude-all-mount-points": "0",
+				"vss.exclude-volumes":          "",
+				"vss.timeout":                  "120s",
+				"vss.provider":                 "Microsoft Software Shadow Copy provider 1.0",
 			},
 			config{
 				timeout:  120000000000,
@@ -148,7 +148,7 @@ func TestParseMountPoints(t *testing.T) {
 	}{
 		{
 			options.Options{
-				"vss.excludevolumes": `c:;c:\;` + sysVolume + `;` + sysVolumeMutated,
+				"vss.exclude-volumes": `c:;c:\;` + sysVolume + `;` + sysVolumeMutated,
 			},
 			[]string{
 				sysVolumeMatch,
@@ -163,7 +163,7 @@ func TestParseMountPoints(t *testing.T) {
 		},
 		{
 			options.Options{
-				"vss.excludevolumes": `z:\nonexistent;c:;c:\windows\;\\?\Volume{39b9cac2-bcdb-4d51-97c8-0d0677d607fb}\`,
+				"vss.exclude-volumes": `z:\nonexistent;c:;c:\windows\;\\?\Volume{39b9cac2-bcdb-4d51-97c8-0d0677d607fb}\`,
 			},
 			[]string{
 				sysVolumeMatch,
@@ -175,9 +175,9 @@ func TestParseMountPoints(t *testing.T) {
 				{``, false},
 			},
 			[]string{
-				`failed to parse vss\.excludevolumes \[z:\\nonexistent\]:.*`,
-				`failed to parse vss\.excludevolumes \[c:\\windows\\\]:.*`,
-				`failed to parse vss\.excludevolumes \[\\\\\?\\Volume\{39b9cac2-bcdb-4d51-97c8-0d0677d607fb\}\\\]:.*`,
+				`failed to parse vss\.exclude-volumes \[z:\\nonexistent\]:.*`,
+				`failed to parse vss\.exclude-volumes \[c:\\windows\\\]:.*`,
+				`failed to parse vss\.exclude-volumes \[\\\\\?\\Volume\{39b9cac2-bcdb-4d51-97c8-0d0677d607fb\}\\\]:.*`,
 				`failed to get volume from mount point \[c:\\windows\\\]:.*`,
 				`failed to get volume from mount point \[\\\\\?\\Volume\{39b9cac2-bcdb-4d51-97c8-0d0677d607fb\}\\\]:.*`,
 				`failed to get volume from mount point \[\]:.*`,