diff --git a/cmd/sync.go b/cmd/sync.go
index 7afd8ab6..d042f782 100644
--- a/cmd/sync.go
+++ b/cmd/sync.go
@@ -48,7 +48,7 @@ func NewSyncCmd(globalCfg *config.GlobalImpl) *cobra.Command {
 	f.StringVar(&syncOptions.PostRenderer, "post-renderer", "", `pass --post-renderer to "helm template" or "helm upgrade --install"`)
 	f.StringArrayVar(&syncOptions.PostRendererArgs, "post-renderer-args", nil, `pass --post-renderer-args to "helm template" or "helm upgrade --install"`)
 	f.StringVar(&syncOptions.Cascade, "cascade", "", "pass cascade to helm exec, default: background")
-	f.StringVar(&syncOptions.DryRyn, "dry-run", "", "pass dry-run to helm exec")
+	f.StringVar(&syncOptions.DryRun, "dry-run", "", "pass dry-run to helm exec")
 
 	return cmd
 }
diff --git a/pkg/config/apply.go b/pkg/config/apply.go
index f884f87d..70be7efa 100644
--- a/pkg/config/apply.go
+++ b/pkg/config/apply.go
@@ -67,7 +67,7 @@ type ApplyOptions struct {
 	// SyncArgs is the list of arguments to pass to helm upgrade.
 	SyncArgs string
 	// DryRun is for helm dry-run flag
-	DryRyn string
+	DryRun string
 }
 
 // NewApply creates a new Apply
@@ -252,5 +252,5 @@ func (a *ApplyImpl) SyncArgs() string {
 
 // DryRun returns dry-run flag
 func (a *ApplyImpl) DryRun() string {
-	return a.ApplyOptions.DryRyn
+	return a.ApplyOptions.DryRun
 }
diff --git a/pkg/config/sync.go b/pkg/config/sync.go
index bcd7fd9a..baa1622f 100644
--- a/pkg/config/sync.go
+++ b/pkg/config/sync.go
@@ -35,7 +35,7 @@ type SyncOptions struct {
 	// SyncArgs is the list of arguments to pass to the helm upgrade command.
 	SyncArgs string
 	// DryRun is for helm dry-run flag
-	DryRyn string
+	DryRun string
 }
 
 // NewSyncOptions creates a new Apply
@@ -144,5 +144,5 @@ func (t *SyncImpl) SyncArgs() string {
 
 // DryRun returns dry-run flag
 func (t *SyncImpl) DryRun() string {
-	return t.SyncOptions.DryRyn
+	return t.SyncOptions.DryRun
 }
diff --git a/pkg/state/helmx_test.go b/pkg/state/helmx_test.go
index 31f6d71c..d3c8d8e2 100644
--- a/pkg/state/helmx_test.go
+++ b/pkg/state/helmx_test.go
@@ -276,3 +276,42 @@ func TestAppendShowOnlyFlags(t *testing.T) {
 		})
 	}
 }
+
+func TestAppendDryRunFlags(t *testing.T) {
+	type args struct {
+		flags    []string
+		dry-run  string
+		helm     helmexec.Interface
+		expected []string
+	}
+	tests := []struct {
+		name string
+		args args
+	}{
+		{
+			name: "do dry-run on client",
+			args: args{
+				flags:    []string{},
+				dry-run:  "client",
+				helm:     testutil.NewVersionHelmExec("3.12.1"),
+				expected: []string{"--dry-run", "client"},
+			},
+		},
+		{
+			name: "do dry-run on server",
+			args: args{
+				flags:    []string{},
+				dry-run:  "server",
+				helm:     testutil.NewVersionHelmExec("3.12.1"),
+				expected: []string{"--dry-run", "server"},
+			},
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			st := &HelmState{}
+			got := st.appendDryRunFlags(tt.args.flags, tt.args.helm, tt.args.release, tt.args.dry-run)
+			require.Equalf(t, tt.args.expected, got, "appendDryRunFlags() = %v, want %v", got, tt.args.expected)
+		})
+	}
+}