diff --git a/src/plugins/help/helpviewer.cpp b/src/plugins/help/helpviewer.cpp
index fe0799b0e4167faf319bd747e726fed79d128882..41c7ae7f814ce3ec5ff656e1c6a0b98b3b978653 100644
--- a/src/plugins/help/helpviewer.cpp
+++ b/src/plugins/help/helpviewer.cpp
@@ -51,9 +51,10 @@ const QString HelpViewer::AboutBlankPage =
QCoreApplication::translate("HelpViewer", "<title>about:blank</title>");
const QString HelpViewer::PageNotFoundMessage =
- QCoreApplication::translate("HelpViewer", "<title>Error 404...</title><div "
- "align=\"center\"><br><br><h1>The page could not be found</h1><br><h3>'%1'"
- "</h3></div>");
+ QCoreApplication::translate("HelpViewer", "<html><head><meta http-equiv=\""
+ "content-type\" content=\"text/html; charset=UTF-8\"><title>Error 404...</title>"
+ "</head><body><div align=\"center\"><br><br><h1>The page could not be found</h1>"
+ "<br><h3>'%1'</h3></div></body>");
struct ExtensionMap {
const char *extension;