diff --git a/hcledit.go b/hcledit.go
index c6ab425..216075b 100644
--- a/hcledit.go
+++ b/hcledit.go
@@ -49,7 +49,7 @@ func (h *HCLEditor) Create(queryStr string, value interface{}, opts ...Option) e
 	defer h.reload()
 
 	opt := &option{
-		querySeparator: ".",
+		querySeparator: '.',
 	}
 	for _, optFunc := range opts {
 		optFunc(opt)
@@ -81,7 +81,7 @@ func (h *HCLEditor) Read(queryStr string, opts ...Option) (map[string]interface{
 	defer h.reload()
 
 	opt := &option{
-		querySeparator: ".",
+		querySeparator: '.',
 	}
 	for _, optFunc := range opts {
 		optFunc(opt)
@@ -127,7 +127,7 @@ func (h *HCLEditor) Update(queryStr string, value interface{}, opts ...Option) e
 	defer h.reload()
 
 	opt := &option{
-		querySeparator: ".",
+		querySeparator: '.',
 	}
 	for _, optFunc := range opts {
 		optFunc(opt)
@@ -170,7 +170,7 @@ func (h *HCLEditor) Delete(queryStr string, opts ...Option) error {
 	defer h.reload()
 
 	opt := &option{
-		querySeparator: ".",
+		querySeparator: '.',
 	}
 	for _, optFunc := range opts {
 		optFunc(opt)
diff --git a/hcledit_test.go b/hcledit_test.go
index 1f8588e..000969c 100644
--- a/hcledit_test.go
+++ b/hcledit_test.go
@@ -127,7 +127,7 @@ object = {
 }
 `,
 			query: "object|attribute3.value",
-			opts:  []hcledit.Option{hcledit.WithQuerySeparator("|")},
+			opts:  []hcledit.Option{hcledit.WithQuerySeparator('|')},
 			value: "D",
 			want: `
 object = {
diff --git a/internal/query/query.go b/internal/query/query.go
index b1736b8..c5a5ec4 100644
--- a/internal/query/query.go
+++ b/internal/query/query.go
@@ -30,9 +30,9 @@ func (c *queryWildcard) Key() string {
 	return "*"
 }
 
-func Build(src, querySeparator string) ([]Query, error) {
+func Build(src string, querySeparator rune) ([]Query, error) {
 	var queries []Query
-	for _, q := range strings.Split(src, querySeparator) {
+	for _, q := range strings.Split(src, string([]rune{querySeparator})) {
 		if q == "*" {
 			queries = append(queries, &queryWildcard{})
 		} else {
diff --git a/option.go b/option.go
index 6af2b3b..7060533 100644
--- a/option.go
+++ b/option.go
@@ -5,7 +5,7 @@ type option struct {
 	afterKey                string
 	beforeNewline           bool
 	readFallbackToRawString bool
-	querySeparator          string
+	querySeparator          rune
 }
 
 // Option configures specific behavior for specific HCLEditor operations.
@@ -43,8 +43,8 @@ func WithReadFallbackToRawString() Option {
 }
 
 // This sets a separator for queryStr in HCLEditor funcs. The default separator is ".".
-func WithQuerySeparator(chr string) Option {
+func WithQuerySeparator(r rune) Option {
 	return func(opt *option) {
-		opt.querySeparator = chr
+		opt.querySeparator = r
 	}
 }
diff --git a/option_test.go b/option_test.go
index b16b1cd..ff377e2 100644
--- a/option_test.go
+++ b/option_test.go
@@ -246,7 +246,7 @@ object = {
 }
 `,
 			exec: func(editor *hcledit.HCLEditor) error {
-				return editor.Create("object/attribute", "str", hcledit.WithQuerySeparator("/"))
+				return editor.Create("object/attribute", "str", hcledit.WithQuerySeparator('/'))
 			},
 			want: `
 object = {