diff --git a/src/Closures/NoParameterWithNullDefaultValueRule.php b/src/Closures/NoParameterWithNullDefaultValueRule.php
index 74294c1a..219f057d 100644
--- a/src/Closures/NoParameterWithNullDefaultValueRule.php
+++ b/src/Closures/NoParameterWithNullDefaultValueRule.php
@@ -57,7 +57,7 @@ public function processNode(
             return [];
         }
 
-        return \array_map(static function (Node\Param $node): Rules\RuleError {
+        return \array_values(\array_map(static function (Node\Param $node): Rules\RuleError {
             /** @var Node\Expr\Variable $variable */
             $variable = $node->var;
 
@@ -70,6 +70,6 @@ public function processNode(
             ));
 
             return $ruleErrorBuilder->identifier(ErrorIdentifier::noParameterWithNullDefaultValue()->toString())->build();
-        }, $params);
+        }, $params));
     }
 }
diff --git a/src/Closures/NoParameterWithNullableTypeDeclarationRule.php b/src/Closures/NoParameterWithNullableTypeDeclarationRule.php
index 608c45c6..9aec52e3 100644
--- a/src/Closures/NoParameterWithNullableTypeDeclarationRule.php
+++ b/src/Closures/NoParameterWithNullableTypeDeclarationRule.php
@@ -53,7 +53,7 @@ public function processNode(
             return [];
         }
 
-        return \array_map(static function (Node\Param $node): Rules\RuleError {
+        return \array_values(\array_map(static function (Node\Param $node): Rules\RuleError {
             /** @var Node\Expr\Variable $variable */
             $variable = $node->var;
 
@@ -66,7 +66,7 @@ public function processNode(
             ));
 
             return $ruleErrorBuilder->identifier(ErrorIdentifier::noParameterWithNullableTypeDeclaration()->toString())->build();
-        }, $params);
+        }, $params));
     }
 
     private static function isNullable(Node\Param $node): bool
diff --git a/src/Functions/NoParameterWithNullDefaultValueRule.php b/src/Functions/NoParameterWithNullDefaultValueRule.php
index aec3299f..726efcb8 100644
--- a/src/Functions/NoParameterWithNullDefaultValueRule.php
+++ b/src/Functions/NoParameterWithNullDefaultValueRule.php
@@ -59,7 +59,7 @@ public function processNode(
 
         $functionName = $node->namespacedName;
 
-        return \array_map(static function (Node\Param $node) use ($functionName): Rules\RuleError {
+        return \array_values(\array_map(static function (Node\Param $node) use ($functionName): Rules\RuleError {
             /** @var Node\Expr\Variable $variable */
             $variable = $node->var;
 
@@ -73,6 +73,6 @@ public function processNode(
             ));
 
             return $ruleErrorBuilder->identifier(ErrorIdentifier::noParameterWithNullDefaultValue()->toString())->build();
-        }, $params);
+        }, $params));
     }
 }
diff --git a/src/Functions/NoParameterWithNullableTypeDeclarationRule.php b/src/Functions/NoParameterWithNullableTypeDeclarationRule.php
index a90d6bf9..112bcbf4 100644
--- a/src/Functions/NoParameterWithNullableTypeDeclarationRule.php
+++ b/src/Functions/NoParameterWithNullableTypeDeclarationRule.php
@@ -55,7 +55,7 @@ public function processNode(
 
         $functionName = $node->namespacedName;
 
-        return \array_map(static function (Node\Param $node) use ($functionName): Rules\RuleError {
+        return \array_values(\array_map(static function (Node\Param $node) use ($functionName): Rules\RuleError {
             /** @var Node\Expr\Variable $variable */
             $variable = $node->var;
 
@@ -69,7 +69,7 @@ public function processNode(
             ));
 
             return $ruleErrorBuilder->identifier(ErrorIdentifier::noParameterWithNullableTypeDeclaration()->toString())->build();
-        }, $params);
+        }, $params));
     }
 
     private static function isNullable(Node\Param $node): bool
diff --git a/src/Methods/NoConstructorParameterWithDefaultValueRule.php b/src/Methods/NoConstructorParameterWithDefaultValueRule.php
index 444ce2ac..e1991c3f 100644
--- a/src/Methods/NoConstructorParameterWithDefaultValueRule.php
+++ b/src/Methods/NoConstructorParameterWithDefaultValueRule.php
@@ -62,7 +62,7 @@ public function processNode(
         $classReflection = $scope->getClassReflection();
 
         if ($classReflection->isAnonymous()) {
-            return \array_map(static function (Node\Param $node): Rules\RuleError {
+            return \array_values(\array_map(static function (Node\Param $node): Rules\RuleError {
                 /** @var Node\Expr\Variable $variable */
                 $variable = $node->var;
 
@@ -75,12 +75,12 @@ public function processNode(
                 ));
 
                 return $ruleErrorBuilder->identifier(ErrorIdentifier::noConstructorParameterWithDefaultValue()->toString())->build();
-            }, $params);
+            }, $params));
         }
 
         $className = $classReflection->getName();
 
-        return \array_map(static function (Node\Param $node) use ($className): string {
+        return \array_values(\array_map(static function (Node\Param $node) use ($className): string {
             /** @var Node\Expr\Variable $variable */
             $variable = $node->var;
 
@@ -92,6 +92,6 @@ public function processNode(
                 $className,
                 $parameterName,
             );
-        }, $params);
+        }, $params));
     }
 }
diff --git a/src/Methods/NoParameterWithNullDefaultValueRule.php b/src/Methods/NoParameterWithNullDefaultValueRule.php
index 148b5f28..a407db1b 100644
--- a/src/Methods/NoParameterWithNullDefaultValueRule.php
+++ b/src/Methods/NoParameterWithNullDefaultValueRule.php
@@ -64,7 +64,7 @@ public function processNode(
         $classReflection = $scope->getClassReflection();
 
         if ($classReflection->isAnonymous()) {
-            return \array_map(static function (Node\Param $node) use ($methodName): Rules\RuleError {
+            return \array_values(\array_map(static function (Node\Param $node) use ($methodName): Rules\RuleError {
                 /** @var Node\Expr\Variable $variable */
                 $variable = $node->var;
 
@@ -78,7 +78,7 @@ public function processNode(
                 ));
 
                 return $ruleErrorBuilder->identifier(ErrorIdentifier::noParameterWithNullDefaultValue()->toString())->build();
-            }, $params);
+            }, $params));
         }
 
         $className = $classReflection->getName();