diff --git a/src/Lexique/CompileHelpers.php b/src/Lexique/CompileHelpers.php
index 302fff3..bf060f2 100644
--- a/src/Lexique/CompileHelpers.php
+++ b/src/Lexique/CompileHelpers.php
@@ -131,7 +131,7 @@ protected function compileLang(string $expression): string
      * @param string $expression
      * @return string
      */
-    protected function compileTrans(string $expression): string
+    protected function compileapp_trans(string $expression): string
     {
         return $this->compileHelpersStatement($expression, '%trans');
     }
diff --git a/src/StackManager.php b/src/StackManager.php
index 6543b7f..059e1fb 100644
--- a/src/StackManager.php
+++ b/src/StackManager.php
@@ -146,6 +146,9 @@ public function endStack()
     public function getStack(string $name, ?string $default = null)
     {
         if (array_key_exists($name, $this->pushes)) {
+            if (is_null($this->pushes[$name])) {
+                $this->pushes[$name] = $default ?? '';
+            }
             return $this->tintin->renderString(
                 $this->pushes[$name],
                 ['__tintin' => $this->tintin]
diff --git a/tests/CompileHelpersTest.php b/tests/CompileHelpersTest.php
index e31ea60..2f4a6bf 100644
--- a/tests/CompileHelpersTest.php
+++ b/tests/CompileHelpersTest.php
@@ -115,7 +115,7 @@ public function testCompileTransStatement()
     {
         $compileService = $this->makeReflectionFor('compileTrans');
 
-        $render = $compileService->invoke($this->compiler, '%trans("user.service")');
+        $render = $compileService->invoke($this->compiler, '%app_trans("user.service")');
         $this->assertEquals($render, '<?php echo __("user.service"); ?>');
     }