diff --git a/driver/main.cpp b/driver/main.cpp
index b444a94..03f9a0b 100644
--- a/driver/main.cpp
+++ b/driver/main.cpp
@@ -93,8 +93,10 @@ int main(int argc, char* argv[])
         if (NOD::Stat(argv[6], &theStat) || !S_ISREG(theStat.st_mode))
             NOD::LogModule.report(LogVisor::FatalError, "unable to stat %s as file", argv[6]);
 
-        NOD::SystemUTF8View gameId(argv[2]);
-        NOD::SystemUTF8View gameTitle(argv[3]);
+        NOD::SystemString gameIdSys(argv[2]);
+        NOD::SystemUTF8View gameId(gameIdSys);
+        NOD::SystemString gameTitleSys(argv[3]);
+        NOD::SystemUTF8View gameTitle(gameTitleSys);
         size_t lastIdx = -1;
         auto progFunc = [&](size_t idx, const NOD::SystemString& name, size_t bytes)
         {
@@ -150,8 +152,10 @@ int main(int argc, char* argv[])
         if (NOD::Stat(argv[7], &theStat) || !S_ISREG(theStat.st_mode))
             NOD::LogModule.report(LogVisor::FatalError, _S("unable to stat %s as file"), argv[7]);
 
-        NOD::SystemUTF8View gameId(argv[2]);
-        NOD::SystemUTF8View gameTitle(argv[3]);
+        NOD::SystemString gameIdSys(argv[2]);
+        NOD::SystemUTF8View gameId(gameIdSys);
+        NOD::SystemString gameTitleSys(argv[3]);
+        NOD::SystemUTF8View gameTitle(gameTitleSys);
         size_t lastIdx = -1;
         auto progFunc = [&](size_t idx, const NOD::SystemString& name, size_t bytes)
         {
diff --git a/include/NOD/Util.hpp b/include/NOD/Util.hpp
index e6329d1..24c459f 100644
--- a/include/NOD/Util.hpp
+++ b/include/NOD/Util.hpp
@@ -83,7 +83,7 @@ class SystemUTF8View
 {
     std::string m_utf8;
 public:
-    SystemUTF8View(const SystemString& str)
+    explicit SystemUTF8View(const SystemString& str)
     {
         int len = WideCharToMultiByte(CP_UTF8, 0, str.c_str(), str.size(), nullptr, 0, nullptr, nullptr);
         m_utf8.assign(len, '\0');
@@ -95,7 +95,7 @@ class SystemStringView
 {
     std::wstring m_sys;
 public:
-    SystemStringView(const std::string& str)
+    explicit SystemStringView(const std::string& str)
     {
         int len = MultiByteToWideChar(CP_UTF8, 0, str.c_str(), str.size(), nullptr, 0);
         m_sys.assign(len, L'\0');
@@ -118,7 +118,7 @@ class SystemUTF8View
 {
     const std::string& m_utf8;
 public:
-    SystemUTF8View(const SystemString& str)
+    explicit SystemUTF8View(const SystemString& str)
     : m_utf8(str) {}
     inline const std::string& utf8_str() {return m_utf8;}
 };
@@ -126,7 +126,7 @@ class SystemStringView
 {
     const std::string& m_sys;
 public:
-    SystemStringView(const std::string& str)
+    explicit SystemStringView(const std::string& str)
     : m_sys(str) {}
     inline const std::string& sys_str() {return m_sys;}
 };
diff --git a/lib/FileIOFILE.cpp b/lib/FileIOFILE.cpp
index 87c0400..77f56cd 100644
--- a/lib/FileIOFILE.cpp
+++ b/lib/FileIOFILE.cpp
@@ -30,7 +30,7 @@ public:
         if (!fp)
             return 0;
         FSeek(fp, 0, SEEK_END);
-        uint64_t result = ftello(fp);
+        uint64_t result = FTell(fp);
         fclose(fp);
         return result;
     }