diff --git a/src/saveload/ai_sl.cpp b/src/saveload/ai_sl.cpp
--- a/src/saveload/ai_sl.cpp
+++ b/src/saveload/ai_sl.cpp
@@ -39,7 +39,7 @@ static void SaveReal_AIPL(int *index_ptr
 	CompanyID index = (CompanyID)*index_ptr;
 	AIConfig *config = AIConfig::GetConfig(index);
 
-	if (config->HasAI()) {
+	if (config->HasScript()) {
 		ttd_strlcpy(_ai_saveload_name, config->GetName(), lengthof(_ai_saveload_name));
 		_ai_saveload_version = config->GetVersion();
 	} else {
@@ -48,7 +48,7 @@ static void SaveReal_AIPL(int *index_ptr
 		_ai_saveload_version = -1;
 	}
 
-	_ai_saveload_is_random = config->IsRandomAI();
+	_ai_saveload_is_random = config->IsRandom();
 	_ai_saveload_settings[0] = '\0';
 	config->SettingsToString(_ai_saveload_settings, lengthof(_ai_saveload_settings));
 
@@ -61,7 +61,7 @@ static void Load_AIPL()
 {
 	/* Free all current data */
 	for (CompanyID c = COMPANY_FIRST; c < MAX_COMPANIES; c++) {
-		AIConfig::GetConfig(c, AIConfig::AISS_FORCE_GAME)->ChangeAI(NULL);
+		AIConfig::GetConfig(c, AIConfig::SSS_FORCE_GAME)->Change(NULL);
 	}
 
 	CompanyID index;
@@ -76,17 +76,17 @@ static void Load_AIPL()
 			continue;
 		}
 
-		AIConfig *config = AIConfig::GetConfig(index, AIConfig::AISS_FORCE_GAME);
+		AIConfig *config = AIConfig::GetConfig(index, AIConfig::SSS_FORCE_GAME);
 		if (StrEmpty(_ai_saveload_name)) {
 			/* A random AI. */
-			config->ChangeAI(NULL, -1, false, true);
+			config->Change(NULL, -1, false, true);
 		} else {
-			config->ChangeAI(_ai_saveload_name, _ai_saveload_version, false, _ai_saveload_is_random);
-			if (!config->HasAI()) {
+			config->Change(_ai_saveload_name, _ai_saveload_version, false, _ai_saveload_is_random);
+			if (!config->HasScript()) {
 				/* No version of the AI available that can load the data. Try to load the
 				 * latest version of the AI instead. */
-				config->ChangeAI(_ai_saveload_name, -1, false, _ai_saveload_is_random);
-				if (!config->HasAI()) {
+				config->Change(_ai_saveload_name, -1, false, _ai_saveload_is_random);
+				if (!config->HasScript()) {
 					if (strcmp(_ai_saveload_name, "%_dummy") != 0) {
 						DEBUG(ai, 0, "The savegame has an AI by the name '%s', version %d which is no longer available.", _ai_saveload_name, _ai_saveload_version);
 						DEBUG(ai, 0, "A random other AI will be loaded in its place.");