diff --git a/src/definitions.h b/src/definitions.h
index 597716da..11db3894 100644
--- a/src/definitions.h
+++ b/src/definitions.h
@@ -187,7 +187,7 @@ inline void Log_func(const char* const msg, ...)
 
     va_list args;
     va_start(args, msg);
-    vsprintf(szBuf, msg, args);
+    vsnprintf(szBuf, 512, msg, args);
     va_end(args);
 
     printf("%d: %s\n", count, szBuf);