3 files changed, 3 insertions, 3 deletions
diff --git a/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefFunc.php b/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefFunc.php
index 3539ede..c3ba74f 100644
--- a/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefFunc.php
+++ b/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefFunc.php
@@ -15,6 +15,6 @@ final readonly class RefFunc extends Instr
 
     public static function opName(): string
     {
-        return "ref.func";
+        return 'ref.func';
     }
 }
diff --git a/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefIsNull.php b/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefIsNull.php
index 21c9a26..94f8b6a 100644
--- a/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefIsNull.php
+++ b/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefIsNull.php
@@ -10,6 +10,6 @@ final readonly class RefIsNull extends Instr
 {
     public static function opName(): string
     {
-        return "ref.is_null";
+        return 'ref.is_null';
     }
 }
diff --git a/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefNull.php b/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefNull.php
index ed5afff..0f0524d 100644
--- a/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefNull.php
+++ b/src/WebAssembly/Structure/Instructions/Instrs/Reference/RefNull.php
@@ -19,6 +19,6 @@ final readonly class RefNull extends Instr
 
     public static function opName(): string
     {
-        return "ref.null";
+        return 'ref.null';
     }
 }