diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1fd61a6..8d99289 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Fixed
+- Bug #3: `ErickSkrauch/align_multiline_parameters` not working correctly with nullable type hints.
 
 ## [1.2.0] - 2023-07-20
 ### Changed
diff --git a/src/FunctionNotation/AlignMultilineParametersFixer.php b/src/FunctionNotation/AlignMultilineParametersFixer.php
index 40a7166..008d3b5 100644
--- a/src/FunctionNotation/AlignMultilineParametersFixer.php
+++ b/src/FunctionNotation/AlignMultilineParametersFixer.php
@@ -74,7 +74,7 @@ public function isCandidate(Tokens $tokens): bool {
     }
 
     /**
-     * Must run after StatementIndentationFixer, MethodArgumentSpaceFixer
+     * Must run after StatementIndentationFixer, MethodArgumentSpaceFixer, CompactNullableTypehintFixer
      */
     public function getPriority(): int {
         return -10;
@@ -183,11 +183,21 @@ protected function applyFix(SplFileInfo $file, Tokens $tokens): void {
         }
     }
 
-    private function getFullTypeLength(Tokens $tokens, int $typeIndex): int {
+    private function getFullTypeLength(Tokens $tokens, ?int $typeIndex): int {
         /** @var \PhpCsFixer\Tokenizer\Token $typeToken */
         $typeToken = $tokens[$typeIndex];
         $typeLength = strlen($typeToken->getContent());
 
+        if ($typeToken->isGivenKind(CT::T_NULLABLE_TYPE)) {
+            $possiblyWhitespace = $tokens[$typeIndex + 1];
+            if ($possiblyWhitespace->isWhitespace()) {
+                $typeLength += strlen($possiblyWhitespace->getContent());
+            }
+
+            $realTypeToken = $tokens[$tokens->getNextMeaningfulToken($typeIndex)];
+            $typeLength += strlen($realTypeToken->getContent());
+        }
+
         /** @var \PhpCsFixer\Tokenizer\Token $possiblyReadonlyToken */
         $possiblyReadonlyToken = $tokens[$typeIndex - 2];
         if ($possiblyReadonlyToken->isGivenKind($this->parameterModifiers)) {
diff --git a/tests/FunctionNotation/AlignMultilineParametersFixerTest.php b/tests/FunctionNotation/AlignMultilineParametersFixerTest.php
index 8ed02f5..66bc9d5 100644
--- a/tests/FunctionNotation/AlignMultilineParametersFixerTest.php
+++ b/tests/FunctionNotation/AlignMultilineParametersFixerTest.php
@@ -49,7 +49,7 @@ function test(string $a, int $b): void {}
             ',
         ];
 
-        yield 'function, no defaults' => [
+        yield 'function, no defaults, no nulls' => [
             '<?php
             function test(
                 string $a,
@@ -64,7 +64,7 @@ function test(
             ',
         ];
 
-        yield 'function, one has default' => [
+        yield 'function, one has default, no nulls' => [
             '<?php
             function test(
                 string $a,
@@ -79,6 +79,30 @@ function test(
             ',
         ];
 
+        yield 'function, no defaults, nullable types' => [
+            '<?php
+            function test(
+                string $a,
+                ?int   $b = 0
+            ): void {}
+            ',
+            '<?php
+            function test(
+                string $a,
+                ?int $b = 0
+            ): void {}
+            ',
+        ];
+
+        yield 'function, no defaults, nullable types with space' => [
+            '<?php
+            function test(
+                string $a,
+                ?  int $b = 0
+            ): void {}
+            ',
+        ];
+
         yield 'function, one has no type' => [
             '<?php
             function test(