diff --git a/src/dialogs.cpp b/src/dialogs.cpp
index 1786ebc8aa76..d417a8b3e897 100644
--- a/src/dialogs.cpp
+++ b/src/dialogs.cpp
@@ -1450,7 +1450,7 @@ const unit_preview_pane::details units_list_preview_pane::get_details() const
 void units_list_preview_pane::process_event()
 {
 	if (details_button_.pressed() && index_ >= 0 && index_ < int(size())) {
-		show_unit_description(*units_[index_]);
+		help::show_unit_description(*units_[index_]);
 	}
 }
 
@@ -1538,44 +1538,10 @@ void unit_types_preview_pane::process_event()
 	if (details_button_.pressed() && index_ >= 0 && index_ < int(size())) {
 		const unit_type* type = (*unit_types_)[index_];
 		if (type != NULL)
-			show_unit_description(*type);
+			help::show_unit_description(*type);
 	}
 }
 
-
-void show_unit_description(const unit &u)
-{
-	show_unit_description(u.type());
-}
-
-void show_terrain_description(const terrain_type &t)
-{
-	help::show_terrain_help(*display::get_singleton(), t.id(), t.hide_in_editor() || t.is_combined());
-}
-
-void show_unit_description(const unit_type &t)
-{
-	std::string var_id = t.get_cfg()["variation_id"].str();
-	if (var_id.empty())
-		var_id = t.get_cfg()["variation_name"].str();
-	bool hide_help = t.hide_help();
-	bool use_variation = false;
-	if (!var_id.empty()) {
-		const unit_type *parent = unit_types.find(t.id());
-		assert(parent);
-		if (hide_help) {
-			hide_help = parent->hide_help();
-		} else {
-			use_variation = true;
-		}
-	}
-
-	if (use_variation)
-		help::show_variation_help(*display::get_singleton(), t.id(), var_id, hide_help);
-	else
-		help::show_unit_help(*display::get_singleton(), t.id(), !t.variations().empty(), hide_help);
-}
-
 static network::connection network_data_dialog(display& disp, const std::string& msg, config& cfg, network::connection connection_num, network::statistics (*get_stats)(network::connection handle))
 {
 	const size_t width = 300;
diff --git a/src/dialogs.hpp b/src/dialogs.hpp
index 01d40aae99f0..a6c044ad34f8 100644
--- a/src/dialogs.hpp
+++ b/src/dialogs.hpp
@@ -148,11 +148,6 @@ class unit_types_preview_pane : public dialogs::unit_preview_pane
 	int side_;
 };
 
-
-void show_unit_description(const unit_type &t);
-void show_unit_description(const unit &u);
-void show_terrain_description(const terrain_type& t);
-
 network::connection network_send_dialog(display& disp, const std::string& msg, config& cfg, network::connection connection_num=0);
 network::connection network_receive_dialog(display& disp, const std::string& msg, config& cfg, network::connection connection_num=0);
 network::connection network_connect_dialog(display& disp, const std::string& msg, const std::string& hostname, int port);
diff --git a/src/editor/editor_controller.cpp b/src/editor/editor_controller.cpp
index 0e8fcf323fde..1f62d0e2025c 100644
--- a/src/editor/editor_controller.cpp
+++ b/src/editor/editor_controller.cpp
@@ -1327,7 +1327,7 @@ void editor_controller::terrain_description()
 		return;
 
 	const terrain_type& type = context_manager_->get_map().get_terrain_info(loc);
-	dialogs::show_terrain_description(type);
+	help::show_terrain_description(type);
 }
 
 void editor_controller::process_keyup_event(const SDL_Event& event)
diff --git a/src/help.cpp b/src/help.cpp
index d47b68f1196d..0884795a72e2 100644
--- a/src/help.cpp
+++ b/src/help.cpp
@@ -514,6 +514,39 @@ class help_browser : public gui::widget
 	topic const *shown_topic_;
 };
 
+void show_unit_description(const unit &u)
+{
+	help::show_unit_description(u.type());
+}
+
+void show_terrain_description(const terrain_type &t)
+{
+	help::show_terrain_help(*display::get_singleton(), t.id(), t.hide_in_editor() || t.is_combined());
+}
+
+void show_unit_description(const unit_type &t)
+{
+	std::string var_id = t.get_cfg()["variation_id"].str();
+	if (var_id.empty())
+		var_id = t.get_cfg()["variation_name"].str();
+	bool hide_help = t.hide_help();
+	bool use_variation = false;
+	if (!var_id.empty()) {
+		const unit_type *parent = unit_types.find(t.id());
+		assert(parent);
+		if (hide_help) {
+			hide_help = parent->hide_help();
+		} else {
+			use_variation = true;
+		}
+	}
+
+	if (use_variation)
+		help::show_variation_help(*display::get_singleton(), t.id(), var_id, hide_help);
+	else
+		help::show_unit_help(*display::get_singleton(), t.id(), !t.variations().empty(), hide_help);
+}
+
 // Generator stuff below. Maybe move to a separate file? This one is
 // getting crowded. Dunno if much more is needed though so I'll wait and
 // see.
diff --git a/src/help.hpp b/src/help.hpp
index beca8c5f44ed..df50af9ebf9f 100644
--- a/src/help.hpp
+++ b/src/help.hpp
@@ -17,6 +17,8 @@
 class config;
 class display;
 class gamemap;
+class terrain_type;
+class unit_type;
 
 #include "hotkey/command_executor.hpp"
 #include "construct_dialog.hpp"
@@ -69,6 +71,9 @@ class help_button : public gui::dialog_button, public hotkey::command_executor {
 	hotkey::basic_handler *help_hand_;
 };
 
+void show_unit_description(const unit_type &t);
+void show_unit_description(const unit &u);
+void show_terrain_description(const terrain_type& t);
 
 } // End namespace help.
 
diff --git a/src/menu_events.cpp b/src/menu_events.cpp
index db818afa4072..d3228796e9b8 100644
--- a/src/menu_events.cpp
+++ b/src/menu_events.cpp
@@ -894,7 +894,7 @@ void menu_handler::unit_description()
 {
 	const unit_map::const_iterator un = current_unit();
 	if(un != units_.end()) {
-		dialogs::show_unit_description(*un);
+		help::show_unit_description(*un);
 	}
 }
 
@@ -907,7 +907,7 @@ void menu_handler::terrain_description(mouse_handler& mousehandler)
 
 	const terrain_type& type = map_.get_terrain_info(loc);
 	//const terrain_type& info = resources::gameboard->map().get_terrain_info(terrain);
-	dialogs::show_terrain_description(type);
+	help::show_terrain_description(type);
 }
 
 void menu_handler::rename_unit()