diff --git a/common/basicframe.cpp b/common/basicframe.cpp
index e39a5b20cf..221e5ee41e 100644
--- a/common/basicframe.cpp
+++ b/common/basicframe.cpp
@@ -40,7 +40,6 @@
 #include <fctsys.h>
 #include <pgm_base.h>
 #include <kiface_i.h>
-#include <online_help.h>
 #include <id.h>
 #include <eda_doc.h>
 #include <wxstruct.h>
diff --git a/common/bin_mod.cpp b/common/bin_mod.cpp
index af3370de22..116bc206f6 100644
--- a/common/bin_mod.cpp
+++ b/common/bin_mod.cpp
@@ -23,7 +23,6 @@
  */
 
 #include <bin_mod.h>
-#include <online_help.h>
 #include <common.h>
 
 
diff --git a/common/pgm_base.cpp b/common/pgm_base.cpp
index ddfdf0089b..29eef51ecf 100644
--- a/common/pgm_base.cpp
+++ b/common/pgm_base.cpp
@@ -48,7 +48,6 @@
 #include <id.h>
 #include <build_version.h>
 #include <hotkeys_basic.h>
-#include <online_help.h>
 #include <gestfich.h>
 #include <menus_helpers.h>
 #include <confirm.h>
diff --git a/include/online_help.h b/include/online_help.h
deleted file mode 100644
index e8ec66f043..0000000000
--- a/include/online_help.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/**
- * @file online_help.h
- * @brief Definitions for online help for KiCad.
- */
-
-#ifndef ONLINE_HELP_H
-#define ONLINE_HELP_H
-
-/*
- * KiCad uses HTML or PDF file format in the online help (help command)
- */
-
-#endif  /* #ifndef ONLINE_HELP_H */
diff --git a/kicad/kicad.cpp b/kicad/kicad.cpp
index 5bd4e3ab92..0e220d1d34 100644
--- a/kicad/kicad.cpp
+++ b/kicad/kicad.cpp
@@ -35,7 +35,6 @@
 #include <kiway.h>
 #include <pgm_kicad.h>
 #include <tree_project_frame.h>
-#include <online_help.h>
 #include <wildcards_and_files_ext.h>
 #include <boost/ptr_container/ptr_vector.hpp>
 #include <hotkeys_basic.h>