diff --git a/examples/blockStreaming_doubleBuffer.c b/examples/blockStreaming_doubleBuffer.c
index 0adf6ae..094f80d 100644
--- a/examples/blockStreaming_doubleBuffer.c
+++ b/examples/blockStreaming_doubleBuffer.c
@@ -2,7 +2,10 @@
 // Copyright : Takayuki Matsuoka
 
 
-#define _CRT_SECURE_NO_WARNINGS // for MSVC
+#ifdef _MSC_VER    /* Visual Studio */
+#  define _CRT_SECURE_NO_WARNINGS
+#  define snprintf sprintf_s
+#endif
 #include "lz4.h"
 
 #include <stdio.h>
diff --git a/examples/blockStreaming_lineByLine.c b/examples/blockStreaming_lineByLine.c
index 6d14801..f0f7d46 100644
--- a/examples/blockStreaming_lineByLine.c
+++ b/examples/blockStreaming_lineByLine.c
@@ -2,7 +2,10 @@
 // Copyright : Takayuki Matsuoka
 
 
-#define _CRT_SECURE_NO_WARNINGS // for MSVC
+#ifdef _MSC_VER    /* Visual Studio */
+#  define _CRT_SECURE_NO_WARNINGS
+#  define snprintf sprintf_s
+#endif
 #include "lz4.h"
 
 #include <stdio.h>