diff --git a/include/boost/config/compiler/intel.hpp b/include/boost/config/compiler/intel.hpp
index eec00887..eb4d8140 100644
--- a/include/boost/config/compiler/intel.hpp
+++ b/include/boost/config/compiler/intel.hpp
@@ -179,8 +179,9 @@ template<> struct assert_intrinsic_wchar_t<unsigned short> {};
 // intel-vc9-win-11.1 may leave a non-POD array uninitialized, in some 
 // cases when it should be value-initialized.
 // (Niels Dekker, LKEB, May 2010)
+// Apparently Intel 12.1 (compiler version number 9999 !!) has the same issue (compiler regression).
 #if defined(__INTEL_COMPILER)
-#  if __INTEL_COMPILER <= 1110
+#  if (__INTEL_COMPILER <= 1110) || (__INTEL_COMPILER == 9999)
 #    define BOOST_NO_COMPLETE_VALUE_INITIALIZATION
 #  endif
 #endif