diff --git a/source/CCustomOpcodeSystem.cpp b/source/CCustomOpcodeSystem.cpp
index 2eee2e41..df91b1f0 100644
--- a/source/CCustomOpcodeSystem.cpp
+++ b/source/CCustomOpcodeSystem.cpp
@@ -387,13 +387,13 @@ namespace CLEO
 
 		if (str != nullptr && (size_t)str <= CCustomOpcodeSystem::MinValidAddress)
 		{
-			CCustomOpcodeSystem::lastErrorMsg = stringPrintf("Writing string from invalid '0x%X' pointer", target.data);
+			CCustomOpcodeSystem::lastErrorMsg = StringPrintf("Writing string from invalid '0x%X' pointer", target.data);
 			return false;
 		}
 
 		if ((size_t)target.data <= CCustomOpcodeSystem::MinValidAddress)
 		{
-			CCustomOpcodeSystem::lastErrorMsg = stringPrintf("Writing string into invalid '0x%X' pointer argument", target.data);
+			CCustomOpcodeSystem::lastErrorMsg = StringPrintf("Writing string into invalid '0x%X' pointer argument", target.data);
 			return false;
 		}
 
@@ -428,7 +428,7 @@ namespace CLEO
 
 			if (opcodeParams[0].dwParam <= CCustomOpcodeSystem::MinValidAddress)
 			{
-				CCustomOpcodeSystem::lastErrorMsg = stringPrintf("Writing string into invalid '0x%X' pointer argument", opcodeParams[0].dwParam);
+				CCustomOpcodeSystem::lastErrorMsg = StringPrintf("Writing string into invalid '0x%X' pointer argument", opcodeParams[0].dwParam);
 				return result; // error
 			}
 
@@ -465,7 +465,7 @@ namespace CLEO
 			}
 		}
 
-		CCustomOpcodeSystem::lastErrorMsg = stringPrintf("Writing string, got argument %s", ToKindStr(paramType));
+		CCustomOpcodeSystem::lastErrorMsg = StringPrintf("Writing string, got argument %s", ToKindStr(paramType));
 		CLEO_SkipOpcodeParams(thread, 1); // skip unhandled param
 		return result; // error
 	}
diff --git a/source/CDebug.cpp b/source/CDebug.cpp
index 91c3a626..7d253e51 100644
--- a/source/CDebug.cpp
+++ b/source/CDebug.cpp
@@ -6,23 +6,6 @@
 CDebug Debug;
 using namespace CLEO;
 
-std::string stringPrintf(const char* format, ...)
-{
-    va_list args;
-
-    va_start(args, format);
-    auto len = std::vsnprintf(nullptr, 0, format, args) + 1;
-    va_end(args);
-    
-    std::string result(len, '\0');
-
-    va_start(args, format);
-    std::vsnprintf(result.data(), result.length(), format, args);
-    va_end(args);
-
-    return result;
-}
-
 void CDebug::Trace(CLEO::eLogLevel level, const char* msg)
 {
     std::lock_guard<std::mutex> guard(mutex);
diff --git a/source/CDebug.h b/source/CDebug.h
index c6223d54..74213c5d 100644
--- a/source/CDebug.h
+++ b/source/CDebug.h
@@ -1,8 +1,6 @@
 #pragma once
 #include <mutex>
 
-std::string stringPrintf(const char* format, ...);
-
 namespace CLEO
 {
     class CRunningScript;
diff --git a/source/CScriptEngine.cpp b/source/CScriptEngine.cpp
index ee62f041..7e3d4258 100644
--- a/source/CScriptEngine.cpp
+++ b/source/CScriptEngine.cpp
@@ -932,7 +932,7 @@ namespace CLEO
         }
         else // mission pack
         {
-            MainScriptFileDir = Filepath_User + stringPrintf("\\MPACK\\MPACK%d", CGame::bMissionPackGame);
+            MainScriptFileDir = Filepath_User + StringPrintf("\\MPACK\\MPACK%d", CGame::bMissionPackGame);
             MainScriptFileName = "scr.scm";
         }
 
@@ -1066,7 +1066,7 @@ namespace CLEO
 
         if(saveSlot == -1) return;
 
-        auto saveFile = FS::path(Filepath_Cleo).append(stringPrintf("cleo_saves\\cs%d.sav", saveSlot)).string();
+        auto saveFile = FS::path(Filepath_Cleo).append(StringPrintf("cleo_saves\\cs%d.sav", saveSlot)).string();
 
         safe_info = nullptr;
         stopped_info = nullptr;