diff --git a/include/boost/config/compiler/vacpp.hpp b/include/boost/config/compiler/vacpp.hpp
index 55b6a7cd..e5b69711 100644
--- a/include/boost/config/compiler/vacpp.hpp
+++ b/include/boost/config/compiler/vacpp.hpp
@@ -30,8 +30,8 @@
 #  define BOOST_NO_INITIALIZER_LISTS
 #endif
 
-#if (__IBMCPP__ <= 1101)
-// XL C++ V11.0.1.0 and earlier versions may not always value-initialize  
+#if (__IBMCPP__ <= 1110)
+// XL C++ V11.1 and earlier versions may not always value-initialize  
 // a temporary object T(), when T is a non-POD aggregate class type. 
 // Michael Wong (IBM Canada Ltd) has confirmed this issue and gave it 
 // high priority. -- Niels Dekker (LKEB), May 2010.