diff --git a/src/PhpCs/FiveLab/Sniffs/Strings/StringSniff.php b/src/PhpCs/FiveLab/Sniffs/Strings/StringSniff.php
index c1b9b22..a153892 100644
--- a/src/PhpCs/FiveLab/Sniffs/Strings/StringSniff.php
+++ b/src/PhpCs/FiveLab/Sniffs/Strings/StringSniff.php
@@ -25,6 +25,7 @@ public function register(): array
     {
         return [
             T_CONSTANT_ENCAPSED_STRING,
+            T_DOUBLE_QUOTED_STRING,
         ];
     }
 
diff --git a/tests/PhpCs/FiveLab/Sniffs/Strings/Resources/string/wrong.php b/tests/PhpCs/FiveLab/Sniffs/Strings/Resources/string/wrong.php
index c3ba79d..d134b74 100644
--- a/tests/PhpCs/FiveLab/Sniffs/Strings/Resources/string/wrong.php
+++ b/tests/PhpCs/FiveLab/Sniffs/Strings/Resources/string/wrong.php
@@ -2,3 +2,7 @@
 
 $bar = "some string";
 $foo = \sprintf("fo bar %s", "some");
+
+$baz = new \stdClass(
+    "some param {$foo}"
+);
diff --git a/tests/PhpCs/FiveLab/Sniffs/Strings/StringSniffTest.php b/tests/PhpCs/FiveLab/Sniffs/Strings/StringSniffTest.php
index fa0d2c4..bad9a2d 100644
--- a/tests/PhpCs/FiveLab/Sniffs/Strings/StringSniffTest.php
+++ b/tests/PhpCs/FiveLab/Sniffs/Strings/StringSniffTest.php
@@ -44,6 +44,10 @@ public static function provideDataSet(): array
                     'message' => 'Use double quotes is forbidden.',
                     'source'  => 'FiveLab.Strings.String.DoubleQuotes',
                 ],
+                [
+                    'message' => 'Use double quotes is forbidden.',
+                    'source'  => 'FiveLab.Strings.String.DoubleQuotes',
+                ],
             ],
         ];
     }