diff --git a/src/ai/ai_scanner.cpp b/src/ai/ai_scanner.cpp
index 342afffb6e..89dea93185 100644
--- a/src/ai/ai_scanner.cpp
+++ b/src/ai/ai_scanner.cpp
@@ -48,9 +48,9 @@ AIScannerInfo::~AIScannerInfo()
 	delete this->info_dummy;
 }
 
-void AIScannerInfo::GetScriptName(ScriptInfo *info, char *name, const char *last)
+std::string AIScannerInfo::GetScriptName(ScriptInfo *info)
 {
-	seprintf(name, last, "%s", info->GetName());
+	return info->GetName();
 }
 
 void AIScannerInfo::RegisterAPI(class Squirrel *engine)
@@ -138,10 +138,10 @@ void AIScannerLibrary::Initialize()
 	ScriptScanner::Initialize("AIScanner");
 }
 
-void AIScannerLibrary::GetScriptName(ScriptInfo *info, char *name, const char *last)
+std::string AIScannerLibrary::GetScriptName(ScriptInfo *info)
 {
 	AILibrary *library = static_cast<AILibrary *>(info);
-	seprintf(name, last, "%s.%s", library->GetCategory(), library->GetInstanceName());
+	return fmt::format("{}.{}", library->GetCategory(), library->GetInstanceName());
 }
 
 void AIScannerLibrary::RegisterAPI(class Squirrel *engine)
diff --git a/src/ai/ai_scanner.hpp b/src/ai/ai_scanner.hpp
index 4faee9c62f..fafd585e75 100644
--- a/src/ai/ai_scanner.hpp
+++ b/src/ai/ai_scanner.hpp
@@ -40,7 +40,7 @@ public:
 	void SetDummyAI(class AIInfo *info);
 
 protected:
-	void GetScriptName(ScriptInfo *info, char *name, const char *last) override;
+	std::string GetScriptName(ScriptInfo *info) override;
 	const char *GetFileName() const override { return PATHSEP "info.nut"; }
 	Subdirectory GetDirectory() const override { return AI_DIR; }
 	const char *GetScannerName() const override { return "AIs"; }
@@ -63,7 +63,7 @@ public:
 	class AILibrary *FindLibrary(const char *library, int version);
 
 protected:
-	void GetScriptName(ScriptInfo *info, char *name, const char *last) override;
+	std::string GetScriptName(ScriptInfo *info) override;
 	const char *GetFileName() const override { return PATHSEP "library.nut"; }
 	Subdirectory GetDirectory() const override { return AI_LIBRARY_DIR; }
 	const char *GetScannerName() const override { return "AI Libraries"; }
diff --git a/src/game/game_scanner.cpp b/src/game/game_scanner.cpp
index 367645083b..030a078220 100644
--- a/src/game/game_scanner.cpp
+++ b/src/game/game_scanner.cpp
@@ -13,6 +13,8 @@
 #include "game_info.hpp"
 #include "game_scanner.hpp"
 
+#include "../3rdparty/fmt/format.h"
+
 #include "../safeguards.h"
 
 
@@ -21,9 +23,9 @@ void GameScannerInfo::Initialize()
 	ScriptScanner::Initialize("GSScanner");
 }
 
-void GameScannerInfo::GetScriptName(ScriptInfo *info, char *name, const char *last)
+std::string GameScannerInfo::GetScriptName(ScriptInfo *info)
 {
-	seprintf(name, last, "%s", info->GetName());
+	return info->GetName();
 }
 
 void GameScannerInfo::RegisterAPI(class Squirrel *engine)
@@ -77,10 +79,10 @@ void GameScannerLibrary::Initialize()
 	ScriptScanner::Initialize("GSScanner");
 }
 
-void GameScannerLibrary::GetScriptName(ScriptInfo *info, char *name, const char *last)
+std::string GameScannerLibrary::GetScriptName(ScriptInfo *info)
 {
 	GameLibrary *library = static_cast<GameLibrary *>(info);
-	seprintf(name, last, "%s.%s", library->GetCategory(), library->GetInstanceName());
+	return fmt::format("{}.{}", library->GetCategory(), library->GetInstanceName());
 }
 
 void GameScannerLibrary::RegisterAPI(class Squirrel *engine)
diff --git a/src/game/game_scanner.hpp b/src/game/game_scanner.hpp
index 6c96bccfdf..0608581504 100644
--- a/src/game/game_scanner.hpp
+++ b/src/game/game_scanner.hpp
@@ -26,7 +26,7 @@ public:
 	class GameInfo *FindInfo(const char *nameParam, int versionParam, bool force_exact_match);
 
 protected:
-	void GetScriptName(ScriptInfo *info, char *name, const char *last) override;
+	std::string GetScriptName(ScriptInfo *info) override;
 	const char *GetFileName() const override { return PATHSEP "info.nut"; }
 	Subdirectory GetDirectory() const override { return GAME_DIR; }
 	const char *GetScannerName() const override { return "Game Scripts"; }
@@ -47,7 +47,7 @@ public:
 	class GameLibrary *FindLibrary(const char *library, int version);
 
 protected:
-	void GetScriptName(ScriptInfo *info, char *name, const char *last) override;
+	std::string GetScriptName(ScriptInfo *info) override;
 	const char *GetFileName() const override { return PATHSEP "library.nut"; }
 	Subdirectory GetDirectory() const override { return GAME_LIBRARY_DIR; }
 	const char *GetScannerName() const override { return "GS Libraries"; }
diff --git a/src/script/script_scanner.cpp b/src/script/script_scanner.cpp
index b395b0ed59..fc1e734444 100644
--- a/src/script/script_scanner.cpp
+++ b/src/script/script_scanner.cpp
@@ -97,12 +97,8 @@ void ScriptScanner::Reset()
 
 void ScriptScanner::RegisterScript(ScriptInfo *info)
 {
-	char script_original_name[1024];
-	this->GetScriptName(info, script_original_name, lastof(script_original_name));
-	strtolower(script_original_name);
-
-	char script_name[1024];
-	seprintf(script_name, lastof(script_name), "%s.%d", script_original_name, info->GetVersion());
+	std::string script_original_name = this->GetScriptName(info);
+	std::string script_name = fmt::format("{}.{}", script_original_name, info->GetVersion());
 
 	/* Check if GetShortName follows the rules */
 	if (strlen(info->GetShortName()) != 4) {
diff --git a/src/script/script_scanner.hpp b/src/script/script_scanner.hpp
index 9781e07b69..6d1cbf5b10 100644
--- a/src/script/script_scanner.hpp
+++ b/src/script/script_scanner.hpp
@@ -99,7 +99,7 @@ protected:
 	/**
 	 * Get the script name how to store the script in memory.
 	 */
-	virtual void GetScriptName(ScriptInfo *info, char *name, const char *last) = 0;
+	virtual std::string GetScriptName(ScriptInfo *info) = 0;
 
 	/**
 	 * Get the filename to scan for this type of script.