diff --git a/include/chaiscript/language/chaiscript_engine.hpp b/include/chaiscript/language/chaiscript_engine.hpp
index 89b555e..77ce45a 100644
--- a/include/chaiscript/language/chaiscript_engine.hpp
+++ b/include/chaiscript/language/chaiscript_engine.hpp
@@ -150,8 +150,8 @@ namespace chaiscript
           return std::string(t_str.begin(), t_str.end());
         }
 
-#ifdef _UNICODE
-      template<typename T>
+#if defined(_UNICODE) || defined(UNICODE)
+        template<typename T>
         static std::wstring to_proper_string(const T &t_str)
         {
           return to_wstring(t_str);
@@ -166,7 +166,7 @@ namespace chaiscript
 
       static std::string get_error_message(DWORD t_err)
       {
-#ifdef _UNICODE
+#if defined(_UNICODE) || defined(UNICODE)
         typedef LPWSTR StringType;
         std::wstring retval = L"Unknown Error";
 #else
diff --git a/src/main.cpp b/src/main.cpp
index 109a538..4ebc726 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -24,7 +24,7 @@ char *mystrdup (const char *s) {
   char *d = static_cast<char*>(malloc (len+1));
   if (d == nullptr) return nullptr;          // No memory
 #ifdef CHAISCRIPT_MSVC
-  strcpy_s(d, len, s);                        // Copy the characters
+  strcpy_s(d, len+1, s);                        // Copy the characters
 #else
   strncpy(d,s,len);                        // Copy the characters
 #endif