1 files changed, 1 insertions, 1 deletions
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';
     }
 }