diff --git a/core/modules/field/tests/src/Functional/Number/NumberFieldTest.php b/core/modules/field/tests/src/Functional/Number/NumberFieldTest.php
index 98253c179f9584340a5b7d5589d0cc3cfd99b19f..f9ff9fb3e9ab15ed12349d809cb34e2911452370 100644
--- a/core/modules/field/tests/src/Functional/Number/NumberFieldTest.php
+++ b/core/modules/field/tests/src/Functional/Number/NumberFieldTest.php
@@ -430,7 +430,7 @@ public function testCreateNumberDecimalField() {
    *
    * @internal
    */
-  public function assertSetMinimumValue(FieldConfigInterface $field, int $minimum_value): void {
+  public function assertSetMinimumValue(FieldConfigInterface $field, $minimum_value): void {
     $field_configuration_url = 'entity_test/structure/entity_test/fields/entity_test.entity_test.' . $field->getName();
 
     // Set the minimum value.