diff --git a/src/gen_stub.php b/src/gen_stub.php
index cdae7643..41c895ed 100755
--- a/src/gen_stub.php
+++ b/src/gen_stub.php
@@ -41,6 +41,15 @@ function reportFilePutContents(string $filename, string $content): void {
     getTranslator()->writeFile($filename, $content);
 }
 
+function getClassConstFetchClassName(Expr\ClassConstFetch $expr): string
+{
+    $className = $expr->class->toString();
+    if ($expr->class instanceof PhpParser\Node\Name\FullyQualified) {
+        return '\\' . $className;
+    }
+    return $className;
+}
+
 /**
  * @return FileInfo[]
  */
@@ -2339,7 +2348,7 @@ class EvaluatedValue
                 }
 
                 if ($expr instanceof Expr\ClassConstFetch) {
-                    $class = $expr->class->toString();
+                    $class = getClassConstFetchClassName($expr);
                     if ($class === 'self') {
                         $constName = ClassInfo::$currentClass . "::" . $expr->name->__toString();
                         if (isset($allConstInfos[$constName])) {
diff --git a/tests/aot/namespace/class-const-use-in-property-default.phpt b/tests/aot/namespace/class-const-use-in-property-default.phpt
new file mode 100644
index 00000000..6864ea65
--- /dev/null
+++ b/tests/aot/namespace/class-const-use-in-property-default.phpt
@@ -0,0 +1,28 @@
+--TEST--
+class const from imported global class in property default
+--FILE--
+<?php
+namespace fizz\orm\db {
+    use PDO;
+
+    class PDOConnection
+    {
+        public int $fetchMode = PDO::FETCH_ASSOC;
+        public array $options = [
+            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
+        ];
+    }
+}
+
+namespace {
+    function main()
+    {
+        $conn = new fizz\orm\db\PDOConnection();
+        var_dump($conn->fetchMode === \PDO::FETCH_ASSOC);
+        var_dump($conn->options === [\PDO::ATTR_DEFAULT_FETCH_MODE => \PDO::FETCH_ASSOC]);
+    }
+}
+?>
+--EXPECT--
+bool(true)
+bool(true)