diff --git a/src/libs/languageserverprotocol/languagefeatures.h b/src/libs/languageserverprotocol/languagefeatures.h
index 0282fc5772b..30f3591e643 100644
--- a/src/libs/languageserverprotocol/languagefeatures.h
+++ b/src/libs/languageserverprotocol/languagefeatures.h
@@ -434,7 +434,7 @@ public:
 };
 
 class LANGUAGESERVERPROTOCOL_EXPORT CodeActionResult
-    : public Utils::variant<QList<Utils::variant<Command, CodeAction>>, nullptr_t>
+    : public Utils::variant<QList<Utils::variant<Command, CodeAction>>, std::nullptr_t>
 {
 public:
     using variant::variant;