diff --git a/src/plugins/help/webenginehelpviewer.cpp b/src/plugins/help/webenginehelpviewer.cpp
index 8c03df0faa7..82666e88199 100644
--- a/src/plugins/help/webenginehelpviewer.cpp
+++ b/src/plugins/help/webenginehelpviewer.cpp
@@ -26,6 +26,7 @@
 #include "webenginehelpviewer.h"
 
 #include "helpconstants.h"
+#include "helptr.h"
 #include "localhelpmanager.h"
 #include "openpagesmanager.h"