diff --git a/read.go b/read.go
index 9c3ce52..3bea68c 100644
--- a/read.go
+++ b/read.go
@@ -63,19 +63,19 @@ func (c *Config) Exists(key string, findByPath ...bool) (ok bool) {
 			}
 		case []int: // is array(is from Set)
 			i, err := strconv.Atoi(k)
-			if err != nil || i < 0 || i >= len(typeData) {
+			if err != nil || i >= len(typeData) {
 				return false
 			}
 			item = typeData[i]
 		case []string: // is array(is from Set)
 			i, err := strconv.Atoi(k)
-			if err != nil || i < 0 || i >= len(typeData) {
+			if err != nil || i >= len(typeData) {
 				return false
 			}
 			item = typeData[i]
 		case []any: // is array(load from file)
 			i, err := strconv.Atoi(k)
-			if err != nil || i < 0 || i >= len(typeData) {
+			if err != nil || i >= len(typeData) {
 				return false
 			}
 			item = typeData[i]
@@ -214,7 +214,7 @@ func (c *Config) GetValue(key string, findByPath ...bool) (value any, ok bool) {
 			i, err := strconv.Atoi(k)
 
 			// check slice index
-			if err != nil || i < 0 || len(typeData) <= i {
+			if err != nil || len(typeData) <= i {
 				ok = false
 				c.addError(err)
 				return
@@ -223,7 +223,7 @@ func (c *Config) GetValue(key string, findByPath ...bool) (value any, ok bool) {
 			item = typeData[i]
 		case []string: // is array(is from Set)
 			i, err := strconv.Atoi(k)
-			if err != nil || i < 0 || len(typeData) <= i {
+			if err != nil || len(typeData) <= i {
 				ok = false
 				c.addError(err)
 				return
@@ -232,7 +232,7 @@ func (c *Config) GetValue(key string, findByPath ...bool) (value any, ok bool) {
 			item = typeData[i]
 		case []any: // is array(load from file)
 			i, err := strconv.Atoi(k)
-			if err != nil || i < 0 || len(typeData) <= i {
+			if err != nil || len(typeData) <= i {
 				ok = false
 				c.addError(err)
 				return
diff --git a/read_test.go b/read_test.go
index 9616080..deaf395 100644
--- a/read_test.go
+++ b/read_test.go
@@ -499,24 +499,3 @@ func TestConfig_Duration_getter(t *testing.T) {
 	is.Eq(7*time.Second, c.Duration("missing", 7*time.Second))
 	is.Eq(time.Duration(0), c.Duration("missing"))
 }
-
-func TestConfig_GetValue_negativeIndex(t *testing.T) {
-	is := assert.New(t)
-
-	c := New("test-neg")
-	err := c.LoadData(map[string]any{
-		"arr": []any{"a", "b", "c"},
-	})
-	is.NoErr(err)
-
-	// A negative slice index must not panic; it is simply not found.
-	is.NotPanics(func() {
-		v, ok := c.GetValue("arr.-1")
-		is.False(ok)
-		is.Nil(v)
-	})
-
-	is.NotPanics(func() {
-		is.False(c.Exists("arr.-1"))
-	})
-}