diff --git a/app/Http/Requests/Front/FormSubmissionRequest.php b/app/Http/Requests/Front/FormSubmissionRequest.php
index 07f1b967..65b78966 100644
--- a/app/Http/Requests/Front/FormSubmissionRequest.php
+++ b/app/Http/Requests/Front/FormSubmissionRequest.php
@@ -121,8 +121,8 @@ private function rulesFile(Block $field, array $rules): array
 
     private function rulesNumber(Block $field, array $rules): array
     {
-        $min_value = $field->input('min_value');
-        $max_value = $field->input('max_value');
+        $min_value = $field->input('min_value') ?: null;
+        $max_value = $field->input('max_value') ?: null;
 
         $rules[] = 'integer';
 
diff --git a/tests/Feature/FormTest.php b/tests/Feature/FormTest.php
index f9af741b..e6dce4a7 100644
--- a/tests/Feature/FormTest.php
+++ b/tests/Feature/FormTest.php
@@ -288,6 +288,30 @@ public static function fields(): array
                     'invalid' => 25,
                 ],
             ],
+            'number-min-0' => [
+                [
+                    'type' => 'number',
+                    'required' => false,
+                    'min_value' => 0,
+                    'max_value' => 1,
+                ],
+                [
+                    'valid' => 1,
+                    'invalid' => 5,
+                ],
+            ],
+            'number-max-0' => [
+                [
+                    'type' => 'number',
+                    'required' => false,
+                    'min_value' => 5,
+                    'max_value' => 0,
+                ],
+                [
+                    'valid' => \PHP_INT_MAX,
+                    'invalid' => 3,
+                ],
+            ],
 
             // Date
             'date-required' => [