diff --git a/confparser/space.cpp b/confparser/space.cpp
index 4aa91a6..dd4cac4 100755
--- a/confparser/space.cpp
+++ b/confparser/space.cpp
@@ -365,7 +365,12 @@ std::wstring & Space::Add(const wchar_t * name, int value)
 {
 wchar_t value_str[50];
 
+#ifdef _MSC_VER
 	swprintf(value_str, sizeof(value_str)/sizeof(wchar_t), L"%d", value);
+#else
+	swprintf(value_str, L"%d", value);
+#endif
+
 	return Add(name, value_str);
 }
 
@@ -380,7 +385,12 @@ std::wstring & Space::Add(const wchar_t * name, long value)
 {
 wchar_t value_str[50];
 
+#ifdef _MSC_VER
 	swprintf(value_str, sizeof(value_str)/sizeof(wchar_t), L"%ld", value);
+#else
+	swprintf(value_str, L"%ld", value);
+#endif
+
 	return Add(name, value_str);
 }