diff --git a/src/pdf-merger/Config.h b/src/pdf-merger/Config.h
index a18721c8..de3fe030 100644
--- a/src/pdf-merger/Config.h
+++ b/src/pdf-merger/Config.h
@@ -37,7 +37,9 @@ Is intended for multiplatform support
 #ifdef WIN32
 
 #define _CRT_SECURE_NO_WARNINGS 
+#if _MSC_VER < 1700
 #define snprintf _snprintf
+#endif
 
 #endif