diff --git a/core/mapping/unmarshaler.go b/core/mapping/unmarshaler.go
index a633453a..7b6df276 100644
--- a/core/mapping/unmarshaler.go
+++ b/core/mapping/unmarshaler.go
@@ -253,6 +253,10 @@ func (u *Unmarshaler) processFieldPrimitiveWithJSONNumber(field reflect.StructFi
 		return err
 	}
 
+	if err := validateValueInOptions(opts.options(), v); err != nil {
+		return err
+	}
+
 	if fieldKind == reflect.Ptr {
 		value = value.Elem()
 	}
diff --git a/core/mapping/unmarshaler_test.go b/core/mapping/unmarshaler_test.go
index da042490..521e574f 100644
--- a/core/mapping/unmarshaler_test.go
+++ b/core/mapping/unmarshaler_test.go
@@ -1170,6 +1170,20 @@ func TestUnmarshalWithIntOptionsIncorrect(t *testing.T) {
 	assert.NotNil(t, UnmarshalKey(m, &in))
 }
 
+func TestUnmarshalWithJsonNumberOptionsIncorrect(t *testing.T) {
+	type inner struct {
+		Value     string `key:"value,options=first|second"`
+		Incorrect int    `key:"incorrect,options=1|2"`
+	}
+	m := map[string]interface{}{
+		"value":     "first",
+		"incorrect": json.Number("3"),
+	}
+
+	var in inner
+	assert.NotNil(t, UnmarshalKey(m, &in))
+}
+
 func TestUnmarshalWithUintOptionsCorrect(t *testing.T) {
 	type inner struct {
 		Value  string `key:"value,options=first|second"`