diff --git a/config_host/config_libcxx.h.in b/config_host/config_libcxx.h.in
index cd90bb821154..d1ae77a53210 100644
--- a/config_host/config_libcxx.h.in
+++ b/config_host/config_libcxx.h.in
@@ -10,7 +10,7 @@
 #ifndef INCLUDED_CONFIG_HOST_CONFIG_LIBCXX_H
 #define INCLUDED_CONFIG_HOST_CONFIG_LIBCXX_H
 
-#define HAVE_LIBCXX 0
+#define HAVE_LIBCPP 0
 
 #endif
 
diff --git a/configure.ac b/configure.ac
index c4e71a8a12ff..776dbe918d94 100644
--- a/configure.ac
+++ b/configure.ac
@@ -7391,7 +7391,7 @@ foo bar
 ]])],
     [CPP_LIBRARY=LIBCPP
      cpp_library_name="LLVM libc++"
-     AC_DEFINE([HAVE_LIBCXX])
+     AC_DEFINE([HAVE_LIBCPP])
      HAVE_LIBCPP=TRUE
     ],
     AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
diff --git a/unotools/source/i18n/resmgr.cxx b/unotools/source/i18n/resmgr.cxx
index fb6d32a45d6b..faa35ffe5c9e 100644
--- a/unotools/source/i18n/resmgr.cxx
+++ b/unotools/source/i18n/resmgr.cxx
@@ -23,7 +23,7 @@
 // workdir/UnpackedTarball/boost/boost/locale/format.hpp using "std::auto_ptr<data> d;", but must
 // come very early here in case <memory> is already (indirectly) included earlier:
 #include <config_libcxx.h>
-#if HAVE_LIBCXX
+#if HAVE_LIBPP
 #define _LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR
 #elif defined _MSC_VER
 #define _HAS_AUTO_PTR_ETC 1