diff --git a/src/corelib/text/qvsnprintf.cpp b/src/corelib/text/qvsnprintf.cpp
index 839fc242170..1a3dc2e1f95 100644
--- a/src/corelib/text/qvsnprintf.cpp
+++ b/src/corelib/text/qvsnprintf.cpp
@@ -15,6 +15,10 @@ QT_BEGIN_NAMESPACE
 /*!
     \relates QByteArray
 
+    \obsolete
+
+    Use C++11's \c{std::vsnprintf()} from \c{<cstdio>} instead.
+
     A portable \c vsnprintf() function. Will call \c ::vsnprintf(), \c
     ::_vsnprintf(), or \c ::vsnprintf_s depending on the system, or
     fall back to an internal version.
@@ -67,6 +71,10 @@ int qvsnprintf(char *str, size_t n, const char *fmt, va_list ap)
     \target bytearray-qsnprintf
     \relates QByteArray
 
+    \obsolete
+
+    Use C++11's \c{std::snprintf()} from \c{<cstdio>} instead.
+
     A portable snprintf() function, calls qvsnprintf.
 
     \a fmt is the \c printf() format string. The result is put into