diff --git a/CMakeLists.txt b/CMakeLists.txt
index b6823ea4d..c4236f56a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,4 @@
 cmake_minimum_required (VERSION 2.8)
-set(CMAKE_LEGACY_CYGWIN_WIN32 0) # Remove when CMake >= 2.8.4 is required
 
 include (CheckFunctionExists)
 include (CheckStructHasMember)
diff --git a/cmake.h.in b/cmake.h.in
index f4c39065d..29f9fd5ed 100644
--- a/cmake.h.in
+++ b/cmake.h.in
@@ -39,7 +39,6 @@ Override PACKAGE_LANGUAGE, then
 #cmakedefine NETBSD
 #cmakedefine HAIKU
 #cmakedefine SOLARIS
-#cmakedefine WIN32
 #cmakedefine UNKNOWN
 
 /* Found the lua library */