diff --git a/src/Token/Tokenizer.php b/src/Token/Tokenizer.php
index 9136bb63..42520e6c 100644
--- a/src/Token/Tokenizer.php
+++ b/src/Token/Tokenizer.php
@@ -601,6 +601,18 @@ private function lexOperator(string $operator): void
                 }
             }
 
+            $this->pushToken(Token::OPERATOR_TYPE, $operator);
+        } elseif ('?:' === $operator) {
+            if (
+                self::STATE_BLOCK === $this->getState()
+                && 'types' === $this->getStateParam('blockName')
+            ) {
+                // This is an optional variable type declaration instead
+                $this->pushToken(Token::PUNCTUATION_TYPE, $operator);
+
+                return;
+            }
+
             $this->pushToken(Token::OPERATOR_TYPE, $operator);
         } else {
             $this->pushToken(Token::OPERATOR_TYPE, $operator);
diff --git a/tests/Rules/Operator/OperatorSpacing/OperatorSpacingRuleTest.fixed.twig b/tests/Rules/Operator/OperatorSpacing/OperatorSpacingRuleTest.fixed.twig
index 6b784c32..0ab9b9d2 100644
--- a/tests/Rules/Operator/OperatorSpacing/OperatorSpacingRuleTest.fixed.twig
+++ b/tests/Rules/Operator/OperatorSpacing/OperatorSpacingRuleTest.fixed.twig
@@ -51,3 +51,5 @@ Untouch +-/*%==:
 {{ a is not array }}
 {{ a is
          not array or b is foo }}
+
+{% types {foo: 'int', bar?: 'string'} %}
diff --git a/tests/Rules/Operator/OperatorSpacing/OperatorSpacingRuleTest.twig b/tests/Rules/Operator/OperatorSpacing/OperatorSpacingRuleTest.twig
index c11e9d43..5e70dd8a 100644
--- a/tests/Rules/Operator/OperatorSpacing/OperatorSpacingRuleTest.twig
+++ b/tests/Rules/Operator/OperatorSpacing/OperatorSpacingRuleTest.twig
@@ -51,3 +51,5 @@ Untouch +-/*%==:
 {{ a  is not  array }}
 {{ a  is
          not  array or b  is  foo }}
+
+{% types {foo: 'int', bar?: 'string'} %}
diff --git a/tests/Rules/String/HashQuote/HashQuoteRuleTest.fixed.twig b/tests/Rules/String/HashQuote/HashQuoteRuleTest.fixed.twig
index ac6a6b43..cce497dd 100644
--- a/tests/Rules/String/HashQuote/HashQuoteRuleTest.fixed.twig
+++ b/tests/Rules/String/HashQuote/HashQuoteRuleTest.fixed.twig
@@ -17,3 +17,4 @@
 {% set needQuote = {'data-foo': a} %}
 
 {% set namedArgument = foo(bar: true, baz: false) %}
+{% types {foo: 'int', bar?: 'string'} %}
diff --git a/tests/Rules/String/HashQuote/HashQuoteRuleTest.twig b/tests/Rules/String/HashQuote/HashQuoteRuleTest.twig
index c363d3c7..76ad223a 100644
--- a/tests/Rules/String/HashQuote/HashQuoteRuleTest.twig
+++ b/tests/Rules/String/HashQuote/HashQuoteRuleTest.twig
@@ -17,3 +17,4 @@
 {% set needQuote = {'data-foo': a} %}
 
 {% set namedArgument = foo(bar: true, baz: false) %}
+{% types {foo: 'int', bar?: 'string'} %}
diff --git a/tests/Rules/String/HashQuote/HashQuoteRuleTest.with.fixed.twig b/tests/Rules/String/HashQuote/HashQuoteRuleTest.with.fixed.twig
index 8acba392..feea58d0 100644
--- a/tests/Rules/String/HashQuote/HashQuoteRuleTest.with.fixed.twig
+++ b/tests/Rules/String/HashQuote/HashQuoteRuleTest.with.fixed.twig
@@ -17,3 +17,4 @@
 {% set needQuote = {'data-foo': a} %}
 
 {% set namedArgument = foo(bar: true, baz: false) %}
+{% types {foo: 'int', bar?: 'string'} %}
diff --git a/tests/Token/Tokenizer/Fixtures/test16.twig b/tests/Token/Tokenizer/Fixtures/test16.twig
new file mode 100644
index 00000000..3234859b
--- /dev/null
+++ b/tests/Token/Tokenizer/Fixtures/test16.twig
@@ -0,0 +1 @@
+{% types {foo: 'int', bar?: 'string'} %}
diff --git a/tests/Token/Tokenizer/TokenizerTest.php b/tests/Token/Tokenizer/TokenizerTest.php
index 932a729d..db59ad84 100644
--- a/tests/Token/Tokenizer/TokenizerTest.php
+++ b/tests/Token/Tokenizer/TokenizerTest.php
@@ -773,6 +773,32 @@ public static function tokenizeDataProvider(): iterable
                 78 => Token::EOF_TYPE,
             ],
         ];
+
+        yield [
+            __DIR__.'/Fixtures/test16.twig',
+            [
+                0 => Token::BLOCK_START_TYPE,
+                1 => Token::WHITESPACE_TYPE,
+                2 => Token::BLOCK_NAME_TYPE,
+                3 => Token::WHITESPACE_TYPE,
+                4 => Token::PUNCTUATION_TYPE,
+                5 => Token::NAME_TYPE,
+                6 => Token::PUNCTUATION_TYPE,
+                7 => Token::WHITESPACE_TYPE,
+                8 => Token::STRING_TYPE,
+                9 => Token::PUNCTUATION_TYPE,
+                10 => Token::WHITESPACE_TYPE,
+                11 => Token::NAME_TYPE,
+                12 => Token::PUNCTUATION_TYPE,
+                13 => Token::WHITESPACE_TYPE,
+                14 => Token::STRING_TYPE,
+                15 => Token::PUNCTUATION_TYPE,
+                16 => Token::WHITESPACE_TYPE,
+                17 => Token::BLOCK_END_TYPE,
+                18 => Token::EOL_TYPE,
+                19 => Token::EOF_TYPE,
+            ],
+        ];
     }
 
     /**