diff --git a/CMakeLists.txt b/CMakeLists.txt
index cc97ec924..a450b561a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,7 +9,7 @@ set (PROJECT_VENDOR "Joe Taylor, K1JT")
 set (PROJECT_CONTACT "Joe Taylor <k1jt@arrl.net>")
 set (PROJECT_COPYRIGHT "Copyright (C) 2001-2014 by Joe Taylor, K1JT")
 set (PROJECT_HOMEPAGE "http://www.physics.princeton.edu/pulsar/K1JT/wsjtx.html")
-set (PROJECT_MANUAL "http://www.physics.princeton.edu/pulsar/K1JT/wsjtx-doc/wsjtx-main-toc2.html")
+set (PROJECT_MANUAL "http://www.physics.princeton.edu/pulsar/K1JT/wsjtx-doc/wsjtx-main.html")
 set (PROJECT_SUMMARY_DESCRIPTION "WSJT-X - JT9 and JT65 Modes for LF, MF and HF Amateur Radio.")
 set (PROJECT_DESCRIPTION "${PROJECT_SUMMARY_DESCRIPTION}
  WSJT-X implements JT9, a new mode designed especially for the LF, MF,
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 1e095dddf..105f69a0b 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -994,9 +994,7 @@ void MainWindow::msgBox(QString t)                             //msgBox
 
 void MainWindow::on_actionOnline_Users_Guide_triggered()      //Display manual
 {
-  QDesktopServices::openUrl(QUrl(
-                                 "http://www.physics.princeton.edu/pulsar/K1JT/wsjtx-doc/wsjtx-main.html",
-                                 QUrl::TolerantMode));
+  QDesktopServices::openUrl (QUrl (PROJECT_MANUAL, QUrl::TolerantMode));
 }
 
 void MainWindow::on_actionWide_Waterfall_triggered()      //Display Waterfalls
diff --git a/wsjtx_config.h.in b/wsjtx_config.h.in
index f905727e9..d16cf7821 100644
--- a/wsjtx_config.h.in
+++ b/wsjtx_config.h.in
@@ -15,6 +15,7 @@
 #cmakedefine WSJT_LIB_DESTINATION "@WSJT_LIB_DESTINATION@"
 #cmakedefine WSJT_SHARE_DESTINATION "@WSJT_SHARE_DESTINATION@"
 #cmakedefine WSJT_DOC_DESTINATION "@WSJT_DOC_DESTINATION@"
+#cmakedefine PROJECT_MANUAL "@PROJECT_MANUAL@"
 
 #cmakedefine01 WSJT_SHARED_RUNTIME
 #cmakedefine01 WSJT_QDEBUG_TO_FILE