diff --git a/msvc/Makefile b/msvc/Makefile
index 44b8bf1ed..3227399c5 100644
--- a/msvc/Makefile
+++ b/msvc/Makefile
@@ -41,7 +41,7 @@ ECL_ASDF    =
 # TCP support
 ECL_SOCKETS =
 # X Windows support
-ECL_CLX     =
+# ECL_CLX     = 1
 # Regression Tests support
 ECL_RT      =
 # Defsystem support
diff --git a/src/CHANGELOG b/src/CHANGELOG
index ed1331a7d..1a08421e1 100644
--- a/src/CHANGELOG
+++ b/src/CHANGELOG
@@ -272,6 +272,8 @@ ECL 1.0:
 
  - C:BUILDER searches the ASDF module list for libraries. (Thanks to F.R. Rideau)
 
+ - In Windows, CLX is no longer built by default: use "nmake ECL_CLX=1".
+
 * Contributed code:
 
  - New examples: cmdline/ls.lsp, ffi/uffi.lsp, ffi/cffi.lsp