diff --git a/src/plugins/help/qlitehtml/qlitehtml.qbs b/src/plugins/help/qlitehtml/qlitehtml.qbs
index c3c74e182e6..45ef1f3f3fd 100644
--- a/src/plugins/help/qlitehtml/qlitehtml.qbs
+++ b/src/plugins/help/qlitehtml/qlitehtml.qbs
@@ -26,6 +26,7 @@ Product {
     }
     cpp.optimization: "fast"
     cpp.warningLevel: "none"
+    cpp.cxxLanguageVersion: "c++14"
 
     Export {
         Depends { name: "cpp" }