diff --git a/ai/ai.c b/ai/ai.c
--- a/ai/ai.c
+++ b/ai/ai.c
@@ -244,9 +244,7 @@ void AI_PlayerDied(PlayerID player)
 void AI_Initialize(void)
 {
 	bool tmp_ai_network_client = _ai.network_client;
-#ifdef GPMI
 	bool tmp_ai_gpmi = _ai.gpmi;
-#endif /* GPMI */
 
 	memset(&_ai, 0, sizeof(_ai));
 	memset(&_ai_player, 0, sizeof(_ai_player));
@@ -254,9 +252,7 @@ void AI_Initialize(void)
 	_ai.network_client = tmp_ai_network_client;
 	_ai.network_playas = OWNER_SPECTATOR;
 	_ai.enabled = true;
-#ifdef GPMI
 	_ai.gpmi = tmp_ai_gpmi;
-#endif /* GPMI */
 }
 
 /**
diff --git a/ai/ai.h b/ai/ai.h
--- a/ai/ai.h
+++ b/ai/ai.h
@@ -39,9 +39,7 @@ typedef struct AIStruct {
 	bool network_client;    //! Are we a network_client?
 	uint8 network_playas;   //! The current network player we are connected as
 
-#ifdef GPMI
 	bool gpmi;              //! True if we want GPMI AIs
-#endif /* GPMI */
 } AIStruct;
 
 VARDEF AIStruct _ai;
diff --git a/settings.c b/settings.c
--- a/settings.c
+++ b/settings.c
@@ -11,9 +11,7 @@
 #include "variables.h"
 #include "network.h"
 #include "settings.h"
-#ifdef GPMI
 #include "ai/ai.h"
-#endif /* GPMI */
 
 typedef struct IniFile IniFile;
 typedef struct IniItem IniItem;
@@ -946,9 +944,7 @@ const SettingDesc patch_settings[] = {
 
 	{"ainew_active",				SDT_BOOL,		(void*)false, &_patches.ainew_active,					NULL},
 	{"ai_in_multiplayer",		SDT_BOOL,		(void*)false, &_patches.ai_in_multiplayer,		NULL},
-#ifdef GPMI
 	{"ai_gpmi",							SDT_BOOL,		(void*)true,	&_ai.gpmi,											NULL},
-#endif /* GPMI */
 
 	{"map_x", SDT_UINT32, (void*)8, &_patches.map_x, NULL},
 	{"map_y", SDT_UINT32, (void*)8, &_patches.map_y, NULL},
diff --git a/settings_gui.c b/settings_gui.c
--- a/settings_gui.c
+++ b/settings_gui.c
@@ -19,9 +19,7 @@
 #include "console.h"
 #include "town.h"
 #include "variables.h"
-#ifdef GPMI
 #include "ai/ai.h"
-#endif /* GPMI */
 
 static uint32 _difficulty_click_a;
 static uint32 _difficulty_click_b;
@@ -763,9 +761,7 @@ static const PatchEntry _patches_economy
 static const PatchEntry _patches_ai[] = {
 	{PE_BOOL,		0, STR_CONFIG_PATCHES_AINEW_ACTIVE, "ainew_active", &_patches.ainew_active, 0, 1, 1, &AiNew_PatchActive_Warning},
 	{PE_BOOL,		0, STR_CONFIG_PATCHES_AI_IN_MULTIPLAYER, "ai_in_multiplayer", &_patches.ai_in_multiplayer, 0, 1, 1, &Ai_In_Multiplayer_Warning},
-#ifdef GPMI
 	{PE_BOOL,		0, STR_CONFIG_PATCHES_AI_GPMI, "ai_gpmi", &_ai.gpmi, 0, 1, 1, NULL},
-#endif /* GPMI */
 
 	{PE_BOOL,		0, STR_CONFIG_PATCHES_AI_BUILDS_TRAINS, "ai_disable_veh_train", &_patches.ai_disable_veh_train,			0,  0,  0, NULL},
 	{PE_BOOL,		0, STR_CONFIG_PATCHES_AI_BUILDS_ROADVEH,"ai_disable_veh_roadveh",&_patches.ai_disable_veh_roadveh,		0,  0,  0, NULL},