diff --git a/src/genworld_gui.cpp b/src/genworld_gui.cpp
index a6b5498feb..ba613bd593 100644
--- a/src/genworld_gui.cpp
+++ b/src/genworld_gui.cpp
@@ -27,6 +27,7 @@
 #include "settings_type.h"
 #include "widgets/dropdown_type.h"
 #include "widgets/dropdown_func.h"
+#include "core/random_func.hpp"
 
 #include "table/strings.h"
 #include "table/sprites.h"
diff --git a/src/gfx_func.h b/src/gfx_func.h
index fd6af565e7..4a85860f20 100644
--- a/src/gfx_func.h
+++ b/src/gfx_func.h
@@ -69,8 +69,6 @@ void HandleMouseEvents();
 void CSleep(int milliseconds);
 void UpdateWindows();
 
-uint32 InteractiveRandom(); //< Used for random sequences that are not the same on the other end of the multiplayer link
-uint InteractiveRandomRange(uint max);
 void DrawChatMessage();
 void DrawMouseCursor();
 void ScreenSizeChanged();
diff --git a/src/music_gui.cpp b/src/music_gui.cpp
index 1816147c85..e048d91535 100644
--- a/src/music_gui.cpp
+++ b/src/music_gui.cpp
@@ -14,6 +14,7 @@
 #include "sound_func.h"
 #include "gfx_func.h"
 #include "core/math_func.hpp"
+#include "core/random_func.hpp"
 
 #include "table/strings.h"
 #include "table/sprites.h"
diff --git a/src/video/dedicated_v.cpp b/src/video/dedicated_v.cpp
index c952ff093a..df15663d87 100644
--- a/src/video/dedicated_v.cpp
+++ b/src/video/dedicated_v.cpp
@@ -17,6 +17,7 @@
 #include "../blitter/factory.hpp"
 #include "../core/alloc_func.hpp"
 #include "../player_func.h"
+#include "../core/random_func.hpp"
 #include "dedicated_v.h"
 
 #ifdef BEOS_NET_SERVER
diff --git a/src/video/sdl_v.cpp b/src/video/sdl_v.cpp
index f52478c5d0..25ce5a8c67 100644
--- a/src/video/sdl_v.cpp
+++ b/src/video/sdl_v.cpp
@@ -12,6 +12,7 @@
 #include "../blitter/factory.hpp"
 #include "../network/network.h"
 #include "../core/math_func.hpp"
+#include "../core/random_func.hpp"
 #include "sdl_v.h"
 #include <SDL.h>