diff --git a/gui/gui.pro b/gui/gui.pro
index b8d53034d..6fe367f7e 100644
--- a/gui/gui.pro
+++ b/gui/gui.pro
@@ -12,6 +12,13 @@ QT += widgets
 QT += printsupport
 QT += help
 
+# Build online help
+onlinehelp.target = online-help.qhc
+#onlinehelp.depends = $$PWD/help/online-help.qhp
+onlinehelp.commands = qhelpgenerator $$PWD/help/online-help.qhp -o online-help.qch ; qhelpgenerator $$PWD/help/online-help.qhcp -o online-help.qhc
+QMAKE_EXTRA_TARGETS += onlinehelp
+PRE_TARGETDEPS += online-help.qhc
+
 contains(LINKCORE, [yY][eE][sS]) {
     LIBS += -l../bin/cppcheck-core
     DEFINES += CPPCHECKLIB_IMPORT