diff --git a/src/Illuminate/Validation/Concerns/ReplacesAttributes.php b/src/Illuminate/Validation/Concerns/ReplacesAttributes.php
index cb37e462980b..660818ed0d08 100644
--- a/src/Illuminate/Validation/Concerns/ReplacesAttributes.php
+++ b/src/Illuminate/Validation/Concerns/ReplacesAttributes.php
@@ -217,7 +217,10 @@ protected function replaceMissingIf($message, $attribute, $rule, $parameters)
      */
     protected function replaceMissingUnless($message, $attribute, $rule, $parameters)
     {
-        return $this->replaceMissingIf($message, $attribute, $rule, $parameters);
+        return str_replace([':other', ':value'], [
+            $this->getDisplayableAttribute($parameters[0]),
+            $this->getDisplayableValue($parameters[0], $parameters[1]),
+        ], $message);
     }
 
     /**
diff --git a/tests/Validation/ValidationValidatorTest.php b/tests/Validation/ValidationValidatorTest.php
index ecc9cd18e534..6a35a0a72b21 100755
--- a/tests/Validation/ValidationValidatorTest.php
+++ b/tests/Validation/ValidationValidatorTest.php
@@ -2324,23 +2324,23 @@ public function testValidateMissingUnless()
 
         $v = new Validator($trans, ['foo' => 'yes', 'bar' => '2'], ['foo' => 'missing_unless:bar,1']);
         $this->assertFalse($v->passes());
-        $this->assertSame('The foo field must be missing unless bar is 2.', $v->errors()->first('foo'));
+        $this->assertSame('The foo field must be missing unless bar is 1.', $v->errors()->first('foo'));
 
         $v = new Validator($trans, ['foo' => '', 'bar' => '2'], ['foo' => 'missing_unless:bar,1']);
         $this->assertFalse($v->passes());
-        $this->assertSame('The foo field must be missing unless bar is 2.', $v->errors()->first('foo'));
+        $this->assertSame('The foo field must be missing unless bar is 1.', $v->errors()->first('foo'));
 
         $v = new Validator($trans, ['foo' => ' ', 'bar' => '2'], ['foo' => 'missing_unless:bar,1']);
         $this->assertFalse($v->passes());
-        $this->assertSame('The foo field must be missing unless bar is 2.', $v->errors()->first('foo'));
+        $this->assertSame('The foo field must be missing unless bar is 1.', $v->errors()->first('foo'));
 
         $v = new Validator($trans, ['foo' => null, 'bar' => '2'], ['foo' => 'missing_unless:bar,1']);
         $this->assertFalse($v->passes());
-        $this->assertSame('The foo field must be missing unless bar is 2.', $v->errors()->first('foo'));
+        $this->assertSame('The foo field must be missing unless bar is 1.', $v->errors()->first('foo'));
 
         $v = new Validator($trans, ['foo' => [], 'bar' => '2'], ['foo' => 'missing_unless:bar,1']);
         $this->assertFalse($v->passes());
-        $this->assertSame('The foo field must be missing unless bar is 2.', $v->errors()->first('foo'));
+        $this->assertSame('The foo field must be missing unless bar is 1.', $v->errors()->first('foo'));
 
         $v = new Validator($trans, ['foo' => new class implements Countable
         {
@@ -2350,7 +2350,7 @@ public function count(): int
             }
         }, 'bar' => '2', ], ['foo' => 'missing_unless:bar,1']);
         $this->assertFalse($v->passes());
-        $this->assertSame('The foo field must be missing unless bar is 2.', $v->errors()->first('foo'));
+        $this->assertSame('The foo field must be missing unless bar is 1.', $v->errors()->first('foo'));
 
         $v = new Validator($trans, ['foo' => 'foo', 'bar' => '1'], ['foo' => 'missing_unless:bar,1']);
         $this->assertTrue($v->passes());